Fifth Doctor

Youthful in mind, manner and appearance, the Fifth Doctor expressed an interest in all things Victorian and Edwardian: cricket, tea, fair play, good manners, and a keen interest in science and exploration. He was also a sensitive and profusely humane incarnation of the Doctor, who did not make himself an imposition, preferring to be honest, reserved, and honourable. However, the Fifth Doctor was also less willing to do what he thought was immoral, and became highly conflicted about what choices he could make in a crisis that were truly right. His hesitancy made him seemingly more fallible than many other incarnations, making those around him wonder if he was capable of resolving difficult situations. Nevertheless, he was one of the most overtly fearless incarnations, and frequently found himself right in the thick of battle.

Like his first two incarnations, the Fifth Doctor often travelled with multiple companions. However, his TARDIS was rarely as harmonious as those of his predecessors. Instead, he frequently found himself stuck between Tegan Jovanka's pessimism and Adric's arrogance or Turlough's antagonism. Stuck in the middle with him was usually Nyssa. Even after he seemingly was settled on just having one companion, he and Peri Brown found another companion, a pharaoh from Egypt called Erimem, and the Doctor once again slid into the role of the oft-maligned chaperone.

When he regenerated, though, he was adventuring only with Peri, and the two fell to spectrox toxaemia, a kind of poisoning. By deciding to deliver his limited supply of antidote only to her, he knew that his only hope for survival lay in regeneration.

Foreshadowing
After seeing the Watcher in a dream, the Fourth Doctor thought of his next incarnation. (PROSE: Into the Silent Land)

Post-regeneration
After being severely injured from falling off the Pharos Project Radio Telescope, the Fourth Doctor merged with the Watcher and regenerated into his fifth incarnation. (TV: Logopolis)

The regeneration proved to be a difficult one, nearly failing. His companions took him to the Zero Room to stabilise. While he was recovering, (TV: Castrovalva) entering into a hallucination (PROSE: The Comet's Tail), a message came from Adric, whom had abducted, saying the TARDIS was heading for Event One. The Doctor left Tegan and Nyssa instructions on how to escape by jettisoning rooms from the TARDIS.

Much of the Zero Room was jettisoned and the Doctor, needing a peaceful place to continue his stabilisation, went to Castrovalva. After he had recovered, he learned the city was artificial, created by block transfer computations. The Master, in the guise of the Portreeve, had created the city with Adric's brilliant mind. The Doctor rescued Adric and the TARDIS crew fled Castrovalva as it collapsed in on itself, leaving the Master to be erased from existence with it. (TV: Castrovalva)

Early adventures
The Doctor and his companions visited what appeared to be a planet inhabited by highly unusual people, but eventually realised that they were on the Psychodrome, where their memories, desires and fears were being brought to life. One of their creations, King Magus, planned to use them to conquer his world, but they managed to escape. (AUDIO: Psychodrome)

Visiting a colony in the 28th century, the Doctor encountered his seventh incarnation, and the two fought the misguided Ferutu. (PROSE: Cold Fusion) Afterwards, the Doctor and his companions spent Christmas with Iris Wildthyme. (AUDIO: Excelis Dawns)

The Doctor was next reunited with his old friend, Edward Grainger, who had a newborn baby. Adric was taken over by a complex computer entity, attacking the Doctor, Tegan and Nyssa and kidnapping Edward's newborn son to create a new body for itself. The Doctor uploaded the computer entity into the TARDIS systems and transported it to Otho, the second moon of Liberius, blocking its control over Adric and Edward's son. (PROSE: First Born)

The Doctor visited the planet Isopterus, which he found to be overrun by giant termites. He freed the surviving humanoid inhabitants held captive in the termites' nests and took them to freedom on a safe planet. (COMIC: On the Planet Isopterus)

The Doctor tried to replenish the TARDIS with artron energy, but instead arrived in the middle of a battle between the Rutans and the Sontarans. They were captured by the Rutans and escaped, only to be captured by the Sontarans in turn. After looking over their tactical position and finding that they were doomed, the Sontarans returned the travellers to the TARDIS, where the Doctor witnessed Adric, Nyssa and Tegan being abducted by a hooded figure. (COMIC: POT 5) The Doctor then joined his past and future incarnations in rescuing his past, present and future companions. (COMIC: POT 12)

Attempts to return to Heathrow
Setting off for more adventures, the Doctor was asked by Tegan to return her to 1981 London as she had only entered his company by accident. The Doctor got to 1981, but in the wrong place: Monarch's spaceship. The TARDIS crew stopped Monarch's mad scheme for time travel with cyborgs, even though the Doctor had to deal with Adric, who had allied himself with Monarch. Afterwards, Nyssa, who was greatly weakened after almost being converted into a cyborg, collapsed. (TV: Four to Doomsday)

While Nyssa rested in the TARDIS, the Doctor, Adric and Tegan visited the planet Deva Loka. While Tegan slept in a peaceful location, the Doctor and Adric were arrested by a Commander Sanders, a madman undergoing a nervous breakdown. With an artifact known as the Box of Jhana provided by the Kinda, Deva Loka's natural inhabitants, they manage to restore his mind. The Doctor then discovered that a malevolent entity known as the Mara had used Tegan to possess a male from the Kinda tribe; using mirrors, the Doctor was able to force the Mara out, leaving it to perish. He then helped with asking the human exploration team to leave Deva Loka. (TV: Kinda)

Another attempt to return Tegan home saw the Doctor land his TARDIS at Heathrow in 1666. The locals accused the Doctor of carrying the plague and hunted him and his friends down, until they were saved by Richard Mace. Allied with Mace, the Doctor and his companions found the Terileptils were enhancing the plague in carrier rats to rid the planet of humans so they could take over. In stopping them, the Doctor had his sonic screwdriver destroyed and accidentally caused the Great Fire of London. (TV: The Visitation)

The Doctor visited eastern Europe in the early 11th century, where he tried to help the people of Udilf's town defend themselves against Czar U'thai's forces. The Doctor disapproved of Adric introducing the longbow to Udilf's people, knowing how many deaths the weapon would cause in the future. (PROSE: The Immortals)

Still trying to get Tegan home, the Doctor answered a psionic distress call from his old friend, Harry Houdini in England in the 1920s, who needed his help to stop a fortune teller. However, he found Houdini had been manipulated by the Master, who, once again, tried to have the Doctor and his friends killed. But the Doctor managed to stop his arch-enemy's revenge plan. Whilst there, he was contacted by his eleventh incarnation who needed him to return an Ovid sphere to its race. (AUDIO: Smoke and Mirrors)

While Tegan and Nyssa went on a trip together, the Doctor took Adric to Vaga, a planet which he had visited before. Whilst there, they saved a populated Vagan spacecraft from a Pyron space-shark. (PROSE: The Key of Vaga) The Doctor and Adric visited Ixos-4, a planet of which he had heard some interesting stories. Whilst there, they helped rescue a pair of earwig-like aliens who had crash-landed there some years earlier. (PROSE: Planet of Fear)

On a trip to Oxfordshire on 11 June 1925, the Doctor was mistaken for a cricket player summoned by Lord Charles Cranleigh. Helping Cranleigh win a match, the Doctor and his friends were invited to a fancy-dress ball to celebrate. The Doctor's costume was stolen and used as a disguise during a murder, which led to the Doctor being framed by Lady Cranleigh for the crime. The Doctor cleared his name by revealing the TARDIS, and uncovering a Cranleigh family secret: Cranleigh's supposedly deceased brother, George Cranleigh, who had been mentally and physically scarred by natives during a trip to find a rare flower, was the culprit. George kidnapped Nyssa, who was identical to his ex-fiancée Ann, but the Doctor and Charles saved her. Unfortunately, George fell off the roof to his death when Charles moved in to hug his brother. (TV: Black Orchid)

When the TARDIS refused to land in a place with a dimenisonal anomaly, the Doctor went outside and found a damaged spaceship and encountered the Dar Traders, who claimed that the travelers were dead. The Doctor was stabbed by an assassin, but Nyssa helped him by transferring the energies from her Trakenite body and calcified the assassin. (AUDIO: The Darkening Eye)

Hearing alarms warning about spatial anomalies, the Doctor rushed to a room in a distant corner of the TARDIS without explaining to Adric and Tegan what was going on. There, they found Nyssa lying on the floor with a jewel. Once Nyssa came to, the Doctor explained that the jewel was a communication node the Master gave to the Doctor's granddaughter Susan Foreman, and the Master, during the old days on Gallifrey, had tried using the node to telepathically contact Nyssa to find where the Doctor was. The Doctor explained that the node was hidden among other volatile bits and pieces in that TARDIS room so that the Master and the Time Lords couldn't follow the Doctor and Susan. (AUDIO: The Toy)

Taking a trip to an idyllic world, the Doctor, Tegan and Nyssa spent the day relaxing, whilst Adric visited a glade filled with statues of countless races throughout the universe. He was tempted to transform into a statue, but the Doctor dragged him back to the TARDIS and the crew left the planet, leaving Adric resentful of the Doctor because he denied him the right to choose his own destiny. (PROSE: Hearts of Stone)

Adric became distant towards the Doctor, Nyssa and Tegan, causing him to request a return to E-Space, which the Doctor angrily denied out of fear that he would become trapped in the mini-universe again. Visiting Earth to cool off after their argument, the Doctor uncovered a plot by the Cybermen to use Captain Briggs' space freighter as a giant bomb.

As the freighter shifted through time to the distant past, Adric tried to stop the freighter by cracking logic codes on the ship's controls, but a surviving Cyberman destroyed the controls, causing the freighter to hit the Earth and kill the dinosaurs. Trapped on the freighter, Adric died. Nyssa and Tegan were devastated, and the heartbroken Doctor was haunted by the fact that he couldn't use his ability as a time traveller to save him, as Adric's death was now fixed in Earth's history. (TV: Earthshock) Adric's death would haunt the Doctor for centuries, (COMIC: The Forgotten) and led him to swear that he would not allow another of his companions to die. (PROSE: Goth Opera)

Still recovering from losing his companion, the Doctor finally returned Tegan to Heathrow Airport in 1981, where they were recruited by C19 to investigate a missing Concorde. Taking a trip on another Concorde plane, they, along with the passengers, were transported to 140,000,000 BC. They visited a Citadel populated by the previous Concorde passengers, where the Doctor re-encountered the Master, plotting to use the ancient Xeraphin gestalt as a power source for his TARDIS, which had been badly damaged on Castrovalva. Stopping the Master from stealing parts of his own TARDIS, the Doctor abandoned him on Xeriphas to let the Xeraphins take their revenge.

After using his TARDIS to bring Concorde back to 1981, the Doctor and Nyssa left Tegan where she wanted to be and set off in the TARDIS once again, unaware that Tegan had actually wanted to continue travelling with them. (TV: Time-Flight)

Two's company
Travelling to Maine in 1945, the Doctor and Nyssa freed the Veritans that three Dipthodat had been selling while posing as the Acklin family. (PROSE: Tip of the Tongue)

Visiting an asteroid that he had saved years previously, the Doctor and Nyssa met Earth colony agent, Sebastian Musgrove, the lone survivor of the asteroid following a Dalek attack. He later discovered a dying creature called Telxzana. As her life force was the asteroid's sole continent, her death would result in the asteroid's destruction. Because of this, the Doctor contacted Earth to have Musgrove taken to safety, but not before watching the asteroid's last days. (PROSE: Lonely Days)

Shortly after leaving Tegan at Heathrow, the Doctor took Nyssa to Alaska, where they found prehistoric Permian creatures waking from a long period of hibernation, as well as deformed hybrids wandering the ice fields. The Doctor was forced to destroy the Permians before they could spread over Earth, and claimed that the hybrids would soon die without the energies of the Permians to sustain them. (AUDIO: The Land of the Dead)

The Doctor and Nyssa returned to Earth a few times: in the past, after an accident with a teleportation experiment; (AUDIO: Winter for the Adept) and in an alternative Earth where the Dalek Emperor tried to manipulate a Mutant Phase infection. (AUDIO: The Mutant Phase)

When Nyssa attempted to repair the TARDIS chameleon circuit, the ship transformed into a whale and trapped the Doctor and Nyssa on an isolated island on Earth. The Doctor lured his ship onto the island. Having grown fond of the police box form, the Doctor made the TARDIS change back and ensured that the chamelion circuit would remain broke for the time being. (AUDIO: The Deep)

The Doctor arrived at Traken before its destruction to find the cause of Nyssa's psychic sensitivity. They learned Kwundaar had caused her illness deliberately. (AUDIO: Primeval) On the planet Mondas, while it travelled through interstellar space, the Doctor learned that he inspired the creation of the Cybermen. (AUDIO: Spare Parts) The Doctor and Nyssa also met P. G. Wodehouse. (AUDIO: Autumn)

The Doctor and Nyssa become embroiled in Time Lord politics on an alien world ruled by intelligent flightless birds. (AUDIO: Spring) They fell afoul of Sir Isaac Newton and were arrested for having coins from Earth's future, mistaken for counterfeit. (AUDIO: Summer) The Doctor set down in the English village, Stockbridge, to play cricket while Nyssa tried her hand at writing a novel. She caught the attention of a local boy, fell in love and contemplated life on Earth. However, she decided to continue travelling with the Doctor. (AUDIO: Autumn)

Stockbridge
While Nyssa was undertaking a solo expedition to 13th century Rhodes, (AUDIO: Renaissance of the Daleks) the Doctor travelled to Stockbridge to continue playing cricket. Meanwhile, Melanicus, having seized control of the Event Synthesizer from the Prime Mover, used it to wreak havoc on time. While investigating the cause of the distortion, the Doctor met Sir Justin of Wells, who was plucked from a joust in his own time. Justin accompanied the Doctor to Gallifrey and the Althrace system to attend a meeting with the High Evolutionaries of Althrace who explained the situation. Eventually, with the help of Rassilon, Merlin the Wise and Celestrial Intervention Agent Shayde, the Doctor confronted Melanicus, who had hidden the Event Synthesizer in a time-altered version of the local church. Justin, the Doctor and Shayde fought Melanicus, with Justin dealing the killing blow at the cost of his own life, restoring the universe to normal. (COMIC: The Tides of Time)

Continuing his Stockbridge visit, the Doctor met a UFO spotter called Maxwell Edison. When Maxwell stumbled into his TARDIS, the Doctor was taken to a ghost ship in Earth's orbit. But before he could investigate, the ship began breaking up. (COMIC: Stars Fell on Stockbridge)

After spending a few months living in Stockbridge, the Doctor discovered his TARDIS had been embedded in the limestone of the Stockbridge quarry. Investigating, the Doctor found himself in a forest on fire, which had been started by an Elemental Being. As he tried to escape, the Doctor learned the Elemental had possessed the TARDIS's computer, leaving him unable to control his timeship. He was saved by Shayde and taken back to Gallifrey, where he stood trial as the Elemental had secretly been manipulating his TARDIS whilst he was living in Stockbridge. Shayde managed to clear him of any charges, but the Doctor remained curious over Shayde's true motives. (COMIC: The Stockbridge Horror)

Temporary companions
While travelling in the TARDIS, the Doctor arrived on an island in the Pacific Ocean, where he met Fuji and Angus "Gus" Goodman.The Doctor was forced to take Gus away from the island. (COMIC: Lunar Lagoon) The Doctor and Gus arrived in an alternative timeline where World War II hadn't finished, created by the interventions of the Meddling Monk and the Ice Warriors. The Doctor, however, managed to prevent this timeline coming to pass, and defeated the Ice Warriors and the Monk. (COMIC: 4-Dimensional Vistas)

The Doctor and Gus travelled to the planet Celeste, where the Doctor offended Josiah W. Dogbolter by refusing to sell the TARDIS to him, so Dogbolter sent a hitman named the Moderator after the Doctor. Just as the Doctor had dropped Gus off at someplace like home, the Moderator ambushed them and shot Gus. In the ensuing hail of gunfire, Gus shot and incapacitated the Moderator, but died from his wounds. The Doctor left Gus where he had fallen. (COMIC: The Moderator)

The Doctor discovered that a race of aliens had gone back in time and sent a business woman on her way to a job interview to another planet to die, as her changes to the company would eventually lead to a war in the future between that race and another, and they planned to revert it by killing her before she could join the company. The Doctor found her on the planet after three days without food or water and took her into the TARDIS.

The two traveled together for a year-and-a-half. During one trip, the woman's portfolio was scratched as she blocked the treads of an approaching Warboy with it as "the Big One" came down over her. The woman thought that the travels would last forever, but she eventually decided to leave after she learned of the Doctor's past companions and saw the age and sorrow in his eyes. The Doctor thus returned her to her interview. (PROSE: Time on a Vine)

Traveling alone
Around this time, the Doctor's TARDIS crashed into the TARDIS of his tenth incarnation. After they saved the universe from being sucked into a black hole by creating a supernova at the same time as the black hole imploded, the two Doctors bonded over their shared traits, before the Fifth Doctor was returned to his own timestream. (TV: Time Crash)

The Doctor was trapped in the Determinant by, along with his six other incarnations. He gave the Graak advice about how to defeat a Sontaran. He was saved after the Graak defeated the Master, and sacrificed it's life force to free the trapped Doctors. (GAME: Destiny of the Doctors)

He also briefly bumped into George Litefoot, who was going to deal with the giant rats in the sewers that were left from his last encounter with him. (PROSE: A Victorian Interlude)

Troubles with Thomas Brewster
The Doctor reunited with Nyssa, and had an encounter with the Daleks from an alternative timeline. (AUDIO: Renaissance of the Daleks)

The Doctor spent time in Victorian London, where Thomas Brewster stole the TARDIS. (AUDIO: The Haunting of Thomas Brewster) The Doctor and Nyssa then arrived on the land of the "Scorpion King", who they discovered was really their old friend Adric. Reconciled with the pair, Adric aided them in escaping the past and locating the TARDIS. (AUDIO: The Boy That Time Forgot) Putting right what Brewster had made wrong, (AUDIO: Time Reef) the Doctor and Nyssa bid him goodbye on Earth in 2008 with his lover, Connie Winter. (AUDIO: A Perfect World)

Further travels with Nyssa
In 1199, the Doctor and Nyssa found a Rutan inhabiting the Stockbridge Castle on Earth. They managed to defeat the Rutan, but were caught in an explosion. (AUDIO: Castle of Fear) They survived, and arrived in Stockbridge during the late 20th century, where the Doctor met Maxwell Edison again. (AUDIO: The Eternal Summer)

The Doctor and Nyssa were swept up by a time storm to Stockbridge, where a strange rain was mutating the villagers into Dalek slaves. The Daleks tried to turn the Doctor into a Dalek and use his TARDIS to help conquer the universe, but failed. (AUDIO: Plague of the Daleks)

Travelling to Concordum in the hope of getting to hear some of the last Traken music in the universe, the Doctor and Nyssa's visit was cut short when they uncovered a plot by a group of Entropy Sirens involving a musical piece entitled "White Waves, Soft Haze". (AUDIO: The Entropy Composition)

On a planet where the Doctor used his "John Smith" alias, he was mistaken for a local criminal of the same name, arrested and sent to prison. While Nyssa tried to free him, the Doctor tried to warn the prison authorities of an explosion that was destined to destroy them. Realising that it was the Governor herself who would trigger the explosion, the Doctor managed to prevent a catastrophe. (AUDIO: Doing Time)

Taking part in a DVD commentary of a horror film from the 1970s named The Devil's Whisper, the Doctor used the occasion to try and track down an alien parasite known as the Rasht and its "nursemaid" host. In the film was an alien device that enabled a Rasht to possess people who saw it. The Doctor had destroyed all the footage, and planned to use the occasion to contain and destroy the creature. Successful, he and Nyssa departed. (AUDIO: Special Features)

At some point during his travels with Nyssa, they visited Bob Dovie at 59A Barnsfield Crescent in Totton, Hampshire on 23 November 1963. (AUDIO: The Light at the End)

Hannah Bartholemew, a huntress and adventuress who encountered the Doctor and Nyssa in Suffolk in October 1911, and assisted them during an adventure in her own time, (AUDIO: Moonflesh) stowed away in the Doctor's TARDIS and assisted the Doctor on an Arrit tomb ship in which the TARDIS had materialised. After that, Hannah joined the Doctor on new adventures in time and space. (AUDIO: Tomb Ship)

On the SORDIDE Delta space station and in the Shadow-Space connected to it, Hannah saved the lives of the Doctor and Nyssa, as well as the fate of billions of humans, but in the process, she was left purged of all emotions, in a robot-like state. She decided to stay on the station along with its similarly afflicted crew instead of going back home with the Doctor. (AUDIO: Masquerade)

Old foes return again
The Doctor was summoned to Gallifrey after dealing with an anti-matter being near the Arc of Infinity. The High Council, led by Lord President Borusa, ordered a Warrant of Termination issued; the Doctor was to be executed. In the Matrix, the Doctor re-encountered Omega and Tegan Jovanka. (TV: Arc of Infinity) Whilst in the Matrix, he was watched over by a version of Clara Oswald. (TV: The Name of the Doctor) With Nyssa's help, he escaped to Amsterdam in 1983 and found Tegan and Omega, who had created a new body for himself, copying the Doctor's biodata and appearance. The Doctor used the gun of one of Omega's creations to destroy him before Omega could will his self-destruction. With Omega destroyed, the High Council dropped all the charges against the Doctor, allowing him to continue his travels. He also allowed Tegan to rejoin him and Nyssa in the TARDIS. (TV: Arc of Infinity)

While in Amsterdam, the three of them went to a Rembrandt van Rijn exhibition and ended up travelling back in time to the Dutch Golden Age, meeting the famous painter and first trying to help and later defeating an stranded alien on that time period. (AUDIO: The Waters of Amsterdam)

While Tegan and Nyssa relaxed in Amsterdam, (AUDIO: The Elite) the Doctor was called upon by the Time Lords to answer a telepathic message sent by "the Doctor" in the Sector of Forgotten Souls. Upon arrival, the Doctor discovered that Omega had been reconstructed from his biodata, and developed a split personality, believing himself to be both "the Doctor" and Omega. However, the Doctor managed to defeat Omega, and exile him back to his universe of anti-matter. (AUDIO: Omega)

The Doctor tried to return to Amsterdam, but accidentally arrived on a spaceship in the Drashani Empire carrying a prince called Kylo Sorsha. His arrival indirectly caused the ship to crash into the planet Sharnax, and for Kylo to remain stranded on Sharnax. (AUDIO: The Burning Prince) The Doctor returned to Amsterdam thirty seconds after he left to pick up Nyssa and Tegan. (AUDIO: The Waters of Amsterdam)

After leaving Amsterdam, the Doctor took them to Florana, where he discovered a lone Dalek had manipulated the population into believing that it was a god. The Doctor tricked his old enemy into revealing it's real identity to its greatest "follower", Thane, the High Priest. With his faith broken, Thane killed the Dalek. However, Thane continued with the Dalek's plot to use a weapon called "The Cleansing Fire" to wipe out the population, but he ended up killing himself in the process, along with a percentage of the population. (AUDIO: The Elite)

The Doctor tried to help Tegan and Nyssa with their grief for Adric by taking them to the Necropolitan, a huge neutral interplanetary place of mourning. There, he reunited with Verin, a funeral officer whom he had met several times before, and helped him solve a murder. (PROSE: Wake)

The Doctor, Tegan and Nyssa landed on the deserted spaceship Aquitaine, meet the robot Hargreaves and the crew who was scattered through time and helped to solve the temporal mystery that surrounded the vessel (AUDIO: Aquitaine) The TARDIS malfunctions and the three travellers made a forced landing in 1819 Manchester, where they were unwitting testimonies to the horrific events that took place on the city: the Massacre on St Peter's Field. (AUDIO: The Peterloo Massacre)

Stranded on a massacred Earth colony, the Doctor lost Tegan when she was kidnapped by Anna, the last survivor of the population. However, when he found Tegan alive and well, he was disturbed to find Anna had been reduced to dust. (PROSE: Soul Mate)

Taking Nyssa and Tegan to Prague, the Doctor discovered another species had been underground Earth millions of years before the Silurians even existed. (PROSE: Men of the Earth)

When Tegan began having precognitive dreams of the Mara, the Doctor decided to deal with the problem on the Mara's home planet, Manussa, where the Doctor sought help from a snakedancer named Dojjen. According to him, the Doctor had to find his "still point"; the Mara fed on negative emotions, but if one found this internal spot, they would be safe from being fed on. Taking advantage of this knowledge, the Doctor starved the Mara to death, freeing Tegan of its influence. (TV: Snakedance)

In Manchester, the Doctor was attacked by a baby vampire sent by his old Time Lord friend, Ruath, who wanted his blood to resurrect the powerful vampire Yarven, but Nyssa was bitten and became a vampire in his place. The Doctor found Ruath, who was also a vampire, building a machine to freeze time in eternal night to allow vampires to feed forever. The Doctor allowed Nyssa to convert him, then destroyed the machine and Yarven, changing himself, Nyssa and Ruath back to normal, then trapped Ruath in the time vortex. (PROSE: Goth Opera)

Leaving Manchester, the Doctor was summoned back to Gallifrey, where he and Nyssa investigated a spate of vampire killings whilst an ill Tegan remained in the TARDIS. They came across a Time Lord cult who believed Rassilon was a vampire. They found the real culprit had infiltrated the TARDIS and infected Tegan. Held hostage, the Doctor was forced to pilot the TARDIS to Earth. However, he materialised in daylight, which destroyed the vampire and returned Tegan to normal. (COMIC: Blood Invocation)

When the TARDIS got stuck in a warp ellipse and materialised on a starliner in 1983, the Doctor became trapped at Brendon Public School, where he met a teenage alien exile named Vislor Turlough, who the Black Guardian persuaded to kill the Doctor in return for being taken back to his homeworld. He also reunited with the Brigadier, who'd forgotten their adventures at UNIT and was now a teacher at Brendon's School.

The Doctor found a transmat capsule was responsible for his entrap on Earth; it exploded, sending the TARDIS, containing Nyssa and Tegan, to 1977. After jogging the Brigadier's memory, he and the Doctor went to the spaceship, where the Brigadier from 1977 also was. Mawdryn, one of nine aliens who abused Time Lord technology to become immortal, now wished to die and, at first, it seemed the Doctor would have to sacrifice his remaining regenerations to power a machine to save his companions and kill Mawdryn. Due to the Black Guardian's manipulation of Turlough, the Brigadiers met, and the resulting effect gave the younger Brigadier amnesia and provided power for the machine. The Doctor returned the Brigadiers to their proper times and welcomed Turlough on board, unaware that his latest companion was his assassin. (TV: Mawdryn Undead)

On the Black Guardian's command, Turlough sabotaged the TARDIS, and the ship locked onto a spaceship carrying victims of Lazar's disease to Terminus. Terminus had originally caused the Big Bang and was about to reverse it, destroying the universe. The Doctor charmed the Garm, who prevented the engines from blowing up. Nyssa decided to stay on Terminus to help perfect a cure for Lazar's disease; the only cure for it lacked stability, which was needed to ensure those treated would live, which upset the Doctor, who was left to travel on with Tegan and Turlough. (TV: Terminus)

While fixing Turlough's sabotage, the Doctor encountered the White Guardian and was ordered to visit an Edwardian yacht-like spaceship piloted by Eternals in a race for Enlightenment. One Eternal, Wrack, sought the prize to end her boredom, and used the Black Guardian's power to destroy other ships.

After the Doctor and Turlough won the race, both Guardians offered them the prize. Realising Turlough was in league with his old enemy, the Doctor offered him the prize to test his virtue. Though the Black Guardian tempted him with anything he wanted in exchange for the Doctor's life, Turlough rejected the offer, making the Black Guardian vanish. Although Turlough had been betraying him, the Doctor allowed him to remain aboard the TARDIS, (TV: Enlightenment) which resulted in conflict between him and Tegan. (AUDIO: Cobwebs) Shortly afterwards, the TARDIS landed in Arizona in 1905, where the Doctor came into conflict with travelling showman Thaddeus P. Winklemeyer. (AUDIO: Freakshow)

The Doctor travelled to the tomb of Qin Shi Huangdi in Xi'an and rescued Edward Grainger from a plane crash. Taking Edward aboard the TARDIS, the Doctor investigated the tomb and discovered it was guarded by a thousand terracotta warriors. Treking through the tomb, the Doctor and his three friends fought thousands of enraged ghosts, which included Edward's dead crew. The Doctor used a sonic wave to defeat the ghosts, but was forced to wipe the mind of Edward's love interest, Mai Ling. (PROSE: Falling from Xi'an)

Nyssa returns
Two days later, the TARDIS was forced down to the planet Helheim, where the Doctor, Tegan and Turlough reunited with Nyssa, who had lived fifty years since staying behind on Terminus. Nyssa arrived on Helheim to find a cure for Richtes Disease, which led her to an abandoned base, where they found robotic Cractids, and four bodies covered in cobwebs, which resembled the Doctor, Tegan, Turlough and Nyssa. To discover what happened to the base, they all travelled to the past, where they discovered that the Cractids were attempting to construct clones of the TARDIS crew, explaining why their bodies were left in the base. The Doctor then used his TARDIS, to divert his TARDIS in the past, to arrive on Helheim in the first place. After the Doctor failed to return her home, Nyssa rejoined him and his two other friends on their adventures. (AUDIO: Cobwebs)

The Doctor, Tegan, Turlough and Nyssa arrived on Cherdor in the 28th century, where they found a society which was obsessed with cleanliness, and lived under the menace of the Takers. After discovering the truth behind the origins to the corrupt society, the TARDIS crew returned to the TARDIS, but discovered that Tegan was still possessed by the Mara. (AUDIO: The Whispering Forest)

When the Doctor attempted to drive it out, it changed its tactics and entered into the Doctor's mind, leaving Tegan completely. It then consulted a book in the TARDIS library to find out about its history. Piloting the TARDIS to Manussa (under the pretence of having Tegan examined by a Manussan doctor), it landed the ship about one hundred years prior to the rise of the Sumaran Empire, and embarked on a scheme to bring about the subjugation of Manussa in that time period instead. In the process, keeping the Doctor as its primary host, it possessed several Manussans. It used an experimental Manussan technology (using Manussan blue crystals) to project the thoughts of its hosts into solid matter, manifesting itself physically as a giant snake. However, Tegan and Turlough were able to free the Doctor using a circle of television cameras and screens (similar to the circle of mirrors used on Deva Loka). The Doctor linked the crystal the Mara was using as a link to the material world to the TARDIS so he could reverse the creature's physical manifestation. However, the process required that the crystal be in physical contact with the Mara, and the giant snake, fuelled by the despair of the many Manussans it had managed to possess, had swallowed the TARDIS whole. In the end, a young man who had been brought into existence by the crystal technology sacrificed himself by going out into the snake's belly with the crystal, destroying it by "restoring the balance", as one of the snakedancers put it. Before its destruction, the Mara had managed to possess not only numerous Manussans, but Nyssa and Turlough as well. The Doctor stated that the Mara could not be said to have been fully destroyed, as it was inside all human beings. (AUDIO: The Cradle of the Snake)

After landing in Calcutta on 31 December 1926, the Doctor and his companions joined an expedition to locate the fabled Emerald Tiger. During this adventure, Nyssa regained her youth again. (AUDIO: The Emerald Tiger) Then they landed on the Eight slash Q Panenka comet in 2329, where they met a crew of a space freighter. (AUDIO: The Jupiter Conjunction)

With the intent of arriving in Brisbane, at Tegan's request, the TARDIS encountered a beam of Zygma energy, which separated Nyssa and Turlough from the TARDIS. They arrived in Brisbane during the 51st century, where they found that it was an icy wasteland covered in bodies. They found an old man who already met Nyssa and Turlough before, and was subjected to the zygma experiments, and died. They were then taken away by a group of rebels, who attempted to overthrow Magnus Greel and the Supreme Alliance. Nyssa and Turlough then found out that one of the rebels was the old man who recognised them. The Doctor and Tegan arrived three years in the future, where they found a giant, which the Doctor believed was subjected to the zygma experiments. Tegan was taken by the same rebel who took Nyssa and Turlough three years earlier, while the Doctor was taken by genetically engineered coyotes. Tegan discovered that Nyssa and Turlough had been working for the rebels for three years, and were undercover as Greel's bride and Nyssa's personal assistant. Meanwhile, the Doctor was taken to Dr Sa Yy Findecker, to used be in his zygma experiments; however, the Doctor escaped by coercing the coyote Chops into working for him, and joining the rebels. While at a conference with the Icelandic Alliance in Peking, Magnus Greel and Nyssa gave the commissioner the gift of Mr Sin, although Nyssa didn't know Mr Sin's true purpose. Greel was then met by Dr Findecker, who told him that he successfully invented the time cabinet. Mr Sin then attacked the commissioner's children and killed the commissioner, prompting Greel to kidnap Nyssa, and take her to Reykjavik, leaving Turlough with the rebels. Discovering Greel's plan to escape to Reykjavik, Findecker took the time cabinet there, with the Doctor, Tegan, Turlough and Chops in hot pursuit. Finding out about the commissioner's death, the Filipino Army advanced on Reykjavik. While attempting to infiltrate Greel's base in Reykjavik, Chops sacrificed himself to kill the other coyotes guarding Greel. The Doctor confronted Greel on the roof of the base, where the time cabinet materialised. Greel killed Findecker, while he and Mr Sin escaped in the time cabinet. The Doctor called off the Filipino Army by contacting a previous incarnation of his in the army at the time. (AUDIO: The Butcher of Brisbane)

After a series of adventures in E-Space, (AUDIO: Mistfall, Equilibrium) Nyssa became trapped in the smaller universe when the CVE linking it an N-Space was sealed permanently. (AUDIO: The Entropy Plague)

Reflections of the past
The TARDIS arrived on 13th century Earth, where the Doctor defeated the Master in a jousting match, failed to prevent him from escaping in his TARDIS after his plan was foiled. During this encounter, the Doctor met Kamelion, an android the Master acquired after being stranded by the Doctor in their previous encounter. The Doctor allowed Kamelion to live in his TARDIS with him and his other two companions, (TV: The King's Demons) though Kamelion preferred to remain in the TARDIS for fear of being taken over by a stronger personality and used against the Doctor. (PROSE: The Crystal Bucephalus)

While travelling through space, the TARDIS was penetrated by a Phoenix, attempting to gain control of the main console room. However, the Doctor, Tegan, Turlough and Kamelion managed to access the secondary control room, and expel the Phoenix into the Time Vortex. (PROSE: The Bird of Fire)

The Doctor took Tegan and Turlough to the Eye of Orion for a rest. However, all four of the Doctor's previous lives were been taken out his timestream, and he began to fade away. Having his TARDIS forced to the Death Zone on Gallifrey, the Doctor stabilised thanks to the presence of his original incarnation, along with his granddaughter, Susan Foreman.

After encountering the Master and Cybermen in the Death Zone, the Doctor returned to Gallifrey, where he learned President Borusa was trying to gain Rassilon's secret of immortality; he used the Doctors and his wide variety of companions to clear the way past traps, even hiring the Master to assist him. With the help of his previous incarnations, the Doctor tricked Borusa into falling for Rassilon's final trap. After this, he instructed Rassilon to return his past selfves and companions to their original time.

Though appointed Lord President after Borusa's downfall, the Doctor immediately decided to go "on the run" from his own people in his faulty TARDIS. When Tegan question this decision, the Doctor defended his actions, saying "Why not? After all, that's how it all started," referring to his original departure from Gallifrey back in his first incarnation. (TV: The Five Doctors)

Soon afterwards, a Raston Warrior Robot was sent by the Time Lords to eliminate him, due to his eighth incarnation visiting his past lives to regain his missing memories. As the robot attacked whatever moved, both Doctors approached it from different directions, confusing it to the point of self-destruction. (PROSE: The Eight Doctors)

The Doctor received news that the Master had died and, alongside Tegan and Turlough, attended his funeral in an Earth nursing home where he had spent his final days. However, he discovered he had been lured into a trap by his enemy; the Master had faked his own death to steal the Doctor's remaining regenerations, as the Time Lords had taken away his current body. But the Doctor was saved by Turlough, and the Master was foiled. (PROSE: The Velvet Dark)

Violent times
After receiving damage from Sentinel Six, the Doctor landed the TARDIS inside Sea Base 4 in the year 2084, at a time where two power blocs were on the brink of nuclear war. Three Silurians awoke a colony of Sea Devils from hibernation and intended to take over the base, and trick humanity into waging nuclear war against itself by launching proton missiles into space as a final defensive action of the Silurians. Despite his attempts to convince them otherwise, the Doctor was forced to use hexachromite gas against the reptilian life forms to stop them, and while successfully performing the abort procedure for the missile launch, failed to save any humans inside the base. (TV: Warriors of the Deep)

The Doctor landed the TARDIS in Little Hodcombe in 1984 to meet Tegan's grandfather, Andrew Verney. While in Little Hodcombe, the Doctor discovered a being called the Malus had been feeding off psychic energy generated by the negative emotions caused by the war games being held there, and was being assisted by Sir George Hutchinson. However, the Doctor managed to defeat the Malus and Hutchinson with the help of a schoolteacher called Jane Hampden and Will Chandler from Little Hodcombe in 1643, who was removed from his time by the Malus. (TV: The Awakening)

While Tegan and Turlough remained in Little Hodcombe, the Doctor was involved in a plot involving time leakage and the Jariden Vault of Interstellar Curios. He was attacked by a legion of Daleks helped by a Jariden named Colonel Ulrik. He met his eighth incarnation and used their two TARDISes to form a time loop. An older Ulrik appeared before him and sacrificed himself to help the Doctor defeat the Daleks. The Doctor then joined with his sixth, seventh and eighth incarnations briefly before being returned to his own timeline. (AUDIO: The Four Doctors)

The Doctor teamed up with all of his other incarnations to save Gallifrey from destruction at the end of the Last Great Time War, but lost all memory of the event due to the timelines not being synchronised. (TV: The Day of the Doctor)

Fulfilling his promise, the Doctor and Jane tried to take Will back to 1643. Soon after leaving Little Hodcombe, the Doctor, Jane and Will encountered a race of giant lizards. The Doctor succeeded in returning Will home after about a month of trying. (PROSE: The King of Terror) Then, with Jane's help, he acquired a place on the board of governors at Hexen Bridge School so that he could keep an eye on the area. (PROSE: The Hollow Men)

During Christmas, the Doctor took Tegan and Turlough shopping in Oxford Street. There, they ran into trouble with the local police. (PROSE: Last Minute Shopping) They later spent Christmas with Iris Wildthyme. (PROSE: The Scarlet Empress)

In 1st century England, the Doctor met Ffion, a druid soothsayer, after she saved Tegan from being attacked by Romans. He became embroiled in the battle between Druids and Romans and witnessed many Druid slaughters. However, he managed to save Ffion and his friends by instructing Kamelion to disguise as a Roman soldier. Saddened by the deaths, the Doctor reluctantly stopped Ffion from wiping out of the Romans as it would change history. (PROSE: The Fall of the Druids)

Holidaying in his house in Kent, the Doctor was playing a game of cricket when he encountered intergalactic police force, the Judoon, who had come to Earth to retrieve the Eye of Akasha, which the Doctor had. He was forced to help them when they threatened to harm Tegan, tricking them into taking a cricket ball with them instead of the Eye. (COMIC: The Forgotten)

The TARDIS was torn apart by the Tractators after being pulled to the planet Frontios. These aliens were stranded on the planet and needed wreckage to make a functional ship. The Doctor tricked them into rebuilding the TARDIS, with their leader, the Gravis inside, separating him from the rest of the Tractators and leaving them without their hive mind. (TV: Frontios) After an inadvertent stop on Queth, (PROSE: Life After Queth) the Doctor and Tegan left the Gravis on a barren, rocky planet called Kolkokron. (TV: Frontios)

Before retrieving Turlough from Frontios, the Doctor crashed on the planet Artaris, where he met Lord Grayvorn, who was on a quest to look for and artefact called "the Relic". After arriving in a nunnery to get the maps to find the Relic, the Doctor encountered Iris Wildthyme, who accompanied them on their quest. When they discovered the location of the Relic, they found that it was being guarded by zombies that were resurrected by the Relic. However, they managed to steal the Relic and arrived back at the convent. Upon their return to the convent, Grayvorn and the Mother Superior fought over the Relic and fell off the convent bell tower to their apparent deaths. The Relic was lost again. (AUDIO: Excelis Dawns)

Taking yet another detour from Frontios, the Doctor and Tegan visited Camelot, where they met King Arthur Pendragon and discovered the Master was disguising himself as Merlin, in a plot to help Mordred successfully kill Arthur at the Battle of Camlaan. The Doctor assisted the king in forming "The Knights of the Round Table" to protect the kingdom against dark forces and broke the Master's hold over Arthur, having him banished from the kingdom afterwards. (PROSE: The Creation of Camelot) The Doctor and Tegan also had "a particularly lively visit" to the planet Nocturne. (AUDIO: Nocturne)

After many detours, the Doctor and Tegan collected Turlough from Frontios and became caught in a time corridor. (TV: Frontios) Falling through the time corridor, the Doctor ran into the Daleks loyal to Davros at the London Docks in 1984. The Doctor failed to stop them from attacking the prison ship that he placed Davros in years previously. After resisting the urge to kill Davros in cold blood, the Doctor unleashed the Movellan virus, which destroyed the Daleks. Having won against Davros, the Doctor was dismayed when Tegan, tiring of the violence and death she had encountered during their adventures, chose to remain in her home time. After she ran away from the TARDIS, the Doctor acknowledged that he needed to change his ways. (TV: Resurrection of the Daleks)

Changed ways
On Heracletus, a planet that had been trapped a time loop by the Time Lords, the Doctor lost the TARDIS and met an alternative version of himself called "the Savant". He and Turlough stopped the Savant, along with the magical being, Spline, from taking revenge on the Time Lords and destroying the fabric of time, before quickly locating the TARDIS before the time loop trapped Heracletus for eternity. (PROSE: Zeitgeist)

Travelling into the past to witness the first encounter of the Neanderthal and Cro-Magnon Man, the Doctor set up a camp and allowed Turlough to leave in his TARDIS, waiting six months until his ship finally returned. However, the Doctor's presence prevented the Neanderthal and Cro-Magnon Man's meeting and caused the death of a Neanderthal, which upset the Doctor. (PROSE: Observation)

The Doctor and Turlough became caught up in the American Civil War in December 1861 and met a dying man, called Samuel, who existed in two different timelines. (PROSE: Comforts of Home)

Soon after, the Doctor and Turlough manufactured a cure for the Atkyan plague that nearly destroy the Atkyan species. When the cure transformed them into an aggressive species as a side-effect, the Doctor created a stabilising agent that blocked out the side-effect and returned the Atkyan to normal. He was later devastated when he received a mind-link from his second incarnation, telling him that his cure had halved the Atkyan's life expectancy, which wiped out the entire race. (PROSE: One Step Forward, Two Steps Back)

The Doctor and Turlough went to Lanzarote on 9 May 1984 after Kamelion received a distress signal. Turlough brought on board an American girl, Peri Brown, whom he had saved from drowning. The Doctor piloted the TARDIS to Sarn, a colony world of banished Trions. Kamelion had fallen under the Master's control again and was fronting for him as the god Logar. Though he could not prevent the Master from using the flames to return to full power, the Doctor fiddled with the controls, leaving his old foe to burn to death. Now free of the Master's control, Kamelion begged for death, and the Doctor used the TCE on him. Turlough wished to return home; his exile from Trion had long been ended. The Doctor took Peri on as his new companion for the last three months of her summer vacation. (TV: Planet of Fire)

On their first adventure together, the Doctor and Peri led a rebellion on the planet N'Tia, and were hunted by service robots. During this adventure, Peri considered leaving the Doctor as the strain of his dangerous adventures became to much for her. However, the Doctor took her to see a beautiful nightscape with shooting stars, which convinced her to continue travelling aboard the TARDIS. (PROSE: Light at the End of the Tunnel)

Visiting Wembley in 1936 to see the FA Cup final, the Doctor helped Edward Grainger to entrap Scanlon, a time meddler who had been stealing famous paintings throughout Earth's history. The Doctor frightened Scanlon away from Earth by threatening him with Time Lord retribution if his meddling continued. (PROSE: The Church of Football)

On early 21st century Mars, the Doctor and Peri arrived inside the final resting place of the Ice Warrior, Izdaal. After discovering a team from the Argosy enter the tomb at the same time, the Doctor, Commander Lee Forbes and Pilot Susan Roberts travelled to the centre, where the Ice Warriors that guarded the tomb awoke from protecting Izdaal's body. While Peri went to the Argosy to pick up a survival suit, Sub Commander Sstast went to the Argosy to retrieve Peri and the others, but was knocked out by Paul Webster to create a clone army augmented by Ice Warrior biology and technology.

As the Argosy took off, it was fired at with missiles from the tomb, but the Doctor prevented the Ice Warriors from finishing them off. The Argosy crashlanded and Peri, Paul and Tanya Webster returned to the tomb of Izdaal. After Paul took over an Ice Warrior mobile cannon with Tanya and the Doctor as hostage, Lord Zzaal agreed to take the Doctor's place for the safety of the tomb and allowing Paul access to the Ice Warriors' rocket. As the sun rose, the ultraviolet radiation from the "red dawn" burnt Zzaal to death. With Zzaal no longer in mortal danger, Ssast fired a sonic charge at Paul without endangering Zzaal's life. The Doctor and Tanya ran from Paul and survived the attack, returning to the tomb. (AUDIO: Red Dawn)

Adventures with Peri and Erimem
On a trip to Egypt in 1400 BC with Peri, the Doctor became involved in a struggle with an alien parasite that infected people by touch and controlled them as a hive mind. They saved the young pharaoh Erimem from rebels and a conspiracy. Erimem decided to leave her throne to a distant relative and travel with the Doctor and Peri. (AUDIO: The Eye of the Scorpion)

They later travelled to Paris in 1624. Peri was kidnapped after being mistaken for Queen Anne, the wife of King Louis XIII. (AUDIO: The Church and the Crown)

They visited a market in the Garazone system. Erimem learned of a mystery in the Necromanteia system, where a war between humanoid soldiers and witches was being fought. The witches killed the Doctor, and he entered a dreamlike plain and learned that the war was over a device that gave immortality. The god of the witches resurrected him and the Doctor, Peri and Erimem escaped before the planet exploded. (AUDIO: Nekromanteia)

Tracking an energy-generating glove to the East End, the Doctor found it in the possession of gangster Charlie Shutter. Fearful of the gloves growing power, the Doctor was forced to go on a crime spree with Charlie and his hitman, Jack. After a week of criminal activities, the Doctor and Charlie plotted to steal a second glove from Charlie's rival, Mickey Green. However, Charlie double-crossed the Doctor and ordered Jack to kill him, Peri and Erimem. The Doctor had secretly been giving the police information of Charlie's criminal activities, ending his empire and his freedom. After convincing Jack to change his ways, the Doctor took the gloves to a place where they couldn't be used to cause chaos. (PROSE: The Gangster's Story)

The Doctor dropped Erimem and Peri off for a party in Monte Carlo in 1966 and told them to prevent the theft of the Veiled Leopard, (AUDIO: The Veiled Leopard) while he went to the Gogglebox inside the Moon, though his intended destination was the Ice Caves of Shabadabadon. The TARDIS detected unusual energy signatures which appeared throughout Earth history, including 1984 and 2006. He detected a television transmission which indicated that his future self was investigating in Fell's Point, Baltimore in September 1984 so he went to Brisbane, Australia on 22 September 2006.

While in Brisbane, he met an older Tegan Jovanka and Dr. Katherine Chambers, who seemed to know about him, and learned that Tegan had contracted an alien brain tumour that was killing her. He offered to take her some place her tumour could be cured, but she was kidnapped by Katherine and an accomplice. Katherine had been Peri's best friend when they were in school. In his next incarnation, the Doctor would be involved in a plot involving the Cybermen that would result in the paralysis of Katherine's brother, Nathaniel Chambers, and the death of her father, Anthony Chambers. Katherine kidnapped Tegan for the first patient of her new medical computer. The Doctor stopped Katherine and offered Tegan a chance to travel with him again, but she refused, having grown accustomed to her life on Earth. (AUDIO: The Gathering)

The Doctor visited Clio and gave her a spare stick of celery. (PROSE: The Glass Princess)

The Doctor returned to Ca-Mon Green, a planet he had visited in his first incarnation, re-encountered the Kel-T and stopped them from gaining superpowers, which he had previously done on his last visit. (PROSE: The Power Supply)

The Doctor met up with William Shakespeare and Richard Burbage at a hostelry and discussed the plot to Shakespeare's upcoming play, Twelfth Night, (PROSE: Diary Extract) and also attended Alistair Gordon Lethbridge-Stewart's funeral with his other incarnations. (PROSE: The Gift)

The Doctor, Peri and Erimem attended the inauguration of the three-bodied lustrousness of the Vix. (AUDIO: The 100 Days of the Doctor)

The Doctor, Peri and Erimem answered a distress call from the Ice Warrior prince and ambassador, Zixlyr in the 41st century. Zixlyr had blown up an explosive within his ship to smuggle a Xanthoid volataliser onto Peladon after his sister, the previous ambassador to Peladon, Alixlyr, had disappeared; he claimed he had been attacked by Arcturans and knew that if he entered Peladon through more conventional means, the volataliser would have been detected. As the ship began to fall towards Peladon, part of the ship's hull broke off, leaving the TARDIS around Peladon's orbit and making escape impossible. The Doctor, Peri and Erimem helped Zixlyr safely crash land the ship as it entered Peladon's atmosphere, crashing it into a forest. Zixlyr and Peri went to the citadel of Peladon, while Erimem took care of the Doctor as he recovered.

An Aggedor, the daughter of the late Aggedor the Doctor had encountered in his third incarnation, began approaching the Doctor and Erimem. The Doctor used Erimem's signet ring to hypnotise and tame her. Queen Belldonia of the royal house of Peladon discovered them while on a hunt and escorted the Doctor and Erimem back to the citadel.

An explosion set off by the criminal Arktos and his accomplice, Elkin, had ripped apart the floor of the nearby mines, killing the miners inside. Within the wreckage, Erimem discovered a message in Egyptian hieroglyphs warning of the Osiran Sekhmet, whom the Egyptians worshipped as a god. The Doctor found a secret passageway leading to Sekhmet's trisilicate tomb, where three of her four blood locks had been broken after she fed on the blood of three royal women, including Alixlyr and the newly crowned King Pelleas' predecessor, Queen Elspera, and used the Aggedor to break down the door. Erimem offered her blood to Sekhmet, but had poisoned it with mandrake root that was inside her ring. Zixlyr grabbed onto Sekhmet and set the countdown on his volataliser. Zixlyr sealed the chamber, blowing himself up along with Sekhmet. The Doctor and Erimem escaped, but Erimem was still dying from her poison. Peri used the Time Lord biochemistry in the Doctor's blood to revive Erimem by performing a "very crude" blood transfusion on her.

King Pelleas proposed to Erimem, and she accepted. She parted company from Peri and the Doctor, staying behind to rule Peladon. The Doctor and Peri departed for the TARDIS, still in orbit around Peladon with the help of Alpha Centauri's ship. (AUDIO: The Bride of Peladon)

Second quest for the Key to Time
While on a rainy planet with Peri, the Doctor had discovered a compass, which was actually a segment of the Key to Time, from one of the derelict ships, The Green Man's Burden. After time was frozen on this planet, a sentient tracer sent by the Grace to collect the Key brought the TARDIS off course here, asking the Doctor if he could help her collect two more segments of the Key, which had been decaying after the Doctor put it together the previous time. The tracer turned the first segment into its original form and put it into a satchel leading to another universe.

Arriving on Mars in the distant past, the Doctor decided to name the Tracer "Amy", thinking she had agreed upon the name. Amy realised the segment of the Key was disguised as a capstone on the pyramid in the town. The Doctor and Amy were arrested and taken to Magistrate Isskar, accused of being thieves by Isskar's beadles. They were let go with a warning not to approach the pyramid. Understanding but disobeying the warning, inside the pyramid, the Doctor and Amy met another tracer whom already had one of the segments of the Key in her possession, along her assistant in her quest, Harmonious 14 Zink. The Tracer agreed to the Doctor's suggestion of "Zara", "just to shut you up". At the top of the pyramid, Zara touched the segment and turned it back into a crystal. This caused a gravity well to appear, causing massive changes to Mars' environment. Zara left with the segment using Zink's time ring. The Doctor, Amy and Zink jumped on board an approaching ship, and the Doctor piloted it to safety. Unable to help the catastrophe inflicted on Mars, the Doctor and Amy left in the TARDIS for their next destination.

The Doctor and Amy arrived inside a castle on the ring world of Safeplace about 16,000 years later. At a castle there, there was a succession dispute between the Valdigians Lady Mesca Amuntic and Wembik. The Doctor concocted an anti-venom for Mesca, whom Wembik had poisoned because she refused to allow Mesca's son to become king.

Meanwhile, the Ice Warriors, led by Isskar, now an Ice Lord, were guided to Safeplace by Zara to find the next segment, and began fighting the Valdigians. When the Ice Warriors were repelled, Amy worked out a compromise between Mesca and Wembik — they agreed to be married to one another, so that no matter whose son became king, he would also be the son of the other one. While the Doctor asked Isskar to speak to him, his men brought Amy outside the castle grounds.

Zara spent generations manipulating the Valdigians as well as the Ice Warriors. She realised the castle was the next segment and turned the segment into a crystal, trapping the Doctor, the TARDIS, the Valdigians and Isskar inside. The Doctor struggled to hold on, before Amy, having received the segment in her battle with Zara, turned the segment back into a castle, allowing the Doctor, the Ice Warriors and the Valdigians to escape; the Ice Warriors took the TARDIS outside. Amy then turned it back into a crystal and placed it into her satchel.

The Ice Warriors took the Doctor and Amy onto Isskar's ship to take them a tribunal; Isskar confiscated the segments and sent the TARDIS overboard while the ship was in hyperspace in the event of the Doctor and Amy's escape. Zara, being unable to detect Amy's segments, travelled back in time with the time ring, having "wrecked the controls" of the ship. The ship was on a collision course with the red giant, Leboon. Isskar showed Amy her segments, hidden outside time inside a strongbox, which Amy opened. When the last escape pod was taken, leaving the Doctor and Amy behind, the Doctor tried fixing the ship, before the Black Guardian intervened, telling the Doctor that he hoped the Doctor could explain the situation. (AUDIO: The Judgement of Isskar)

The following location in the quest was Sudan in the 9th century. (AUDIO: The Destroyer of Delights)

Meanwhile, the final piece was found on the planet, Chaos, where he met Romana and Princess Astra. The Doctor discovered that after the key was scattered the last time, Romana had become the final segment of it. To save Romana's life, Astra offered to become the final segment instead, even if it involved her dying to do so. When the White and Black Guardians arrived to try to take the Key away from the Doctor, the Doctor threw it into the Chaos Pool, where it was destroyed, preventing the degradation that it was causing to the universe. While the Guardians left empty handed, Romana returned to Gallifrey, allowing Amy and Zara to accompany her. (AUDIO: The Chaos Pool)

Final travels
The Doctor and Peri went to the medieval village of Sair and discovered the elders of the town were using witchcraft to ensure the population's survival. One of the elders, Tabilibik, cast a spell on Peri that made her fall in love with him and become his devoted slave. Assisted by the other elders, the Doctor broke the spell and ensured that Tabilibik was punished for abusing his powers. (PROSE: Fascination)

Tracking members of the Celestial Intervention Agency, the Doctor and Peri set up a restaurant, and served the CIA food spiked with a vaccine to a virus the CIA members picked up while investigating the Doctor's recent actions on the planet Pointy. (AUDIO: Urban Myths)

On checking his Vortex page he travelled to Los Angeles in 2009 to stop Zarl from stealing the Earth's water. Whilst there she met a future version of Peri who was living there as a TV host. (AUDIO: Peri and the Piscon Paradox)

Death
Directly after an adventure involving two Peris and a Piscon in California, 2009, (AUDIO: Peri and the Piscon Paradox) the Doctor and Peri arrived on Androzani Minor and were caught in a struggle over the mineral spectrox. As they dealt with gun runners, government troops, crooked politicians and a masked madman called Sharaz Jek, the Doctor and Peri were exposed to raw spectrox and contracted the fatal Spectrox toxaemia. Through a perilous descent into the lower caves of the planet, the Doctor managed to get his hands on the milk of a queen bat, the only known cure for the poisoning, but he was only able to recover one dose. He then chose to give Peri the dose, saving her life at the cost of his own.

Succumbing to the poisoning, the Doctor collapsed on the floor of the TARDIS, not entirely sure if he would regenerate, wondering aloud if he was failing to regenerate, and commenting that the regenerative process "[felt] different this time". (TV: The Caves of Androzani) During his regeneration, tried to interfere via Kamelion's lingering connection to the TARDIS, but the Doctor was saved by Nyssa and her husband Lasarti, who connected with him in his mindscape and helped break the mental link allowing the Master to block his regeneration. (AUDIO: Winter) Seeing visions of his former companions urging him to live and insisting that the universe still had need of him, the Doctor rejected the Master's assertion that he must die and regenerated into his sixth incarnation. (TV: The Caves of Androzani)

Post-mortem
After his regeneration, the fifth incarnation became the mental personification of the Doctor's conscience. (PROSE: Timewyrm: Revelation)

When trapped in a dimensionally-unstable pocket universe controlled by Iam and the Rani, the Sixth Doctor's morphic print was destabilised, causing him to unwillingly regress back through his previous incarnations as his body sought a stable morphic print. (PROSE: State of Change)

When the Tenth Doctor was confronted by Es'Cartrss within the TARDIS' Matrix, he summoned the Fifth Doctor, among his other past incarnations, to use their united memories and willpower to take back control of the Matrix. (COMIC: The Forgotten)

After the Eleventh Doctor was accused of committing deadly crimes against the Overcast, he brooded in the TARDIS for two days, imagining all his previous numbered incarnations, including the Fifth Doctor, interrogating him over the crimes. When he offered the rational that he always left things better than he found them, they all turned and left him in disgust and disgrace. (COMIC: Pull to Open)

When the Eleventh Doctor was attacked by the Then and the Now on Lujhimene, the Fifth Doctor was among the incarnations seen as the Doctor's timeline was almost destroyed. (COMIC: Running to Stay Still)

When Clara Oswald entered the Doctor's time stream, she saw the fifth incarnation among the Doctors that ran past her, with the Eleventh Doctor claiming them to be his "ghosts". (TV: The Name of the Doctor)

When the Eleventh Doctor entered into the T'keyn Nexus in order to defend himself, Matrix projections of his previous incarnations, including the Fifth Doctor, appeared inside it to defend themselves as well. When the Fourth Doctor told auditor Sondrah that neither the T'keyn nor the Time Lords would understand his love for the Earth, the Fifth Doctor recalled his efforts to change the Time Lords, and then reflected how the people of Earth had inspired him to better himself. When the Eleventh Doctor began to deduce Sondrah's true identity, the past Doctors faded away as Oscar Wilde interfered with the Nexus. (COMIC: Dead Man's Hand)

Undated adventures

 * River Song met the Fifth Doctor, noting his obsession with the Eye of Harmony, which she believed was a night club. She had his memory wiped with mnemosine recall-wipe vapour so the timeline would remain intact. (GAME: The Eternity Clock)
 * The Doctor had numerous encounters with Darzil Carlisle, assisting him with negotiations for dozens of peace treaties across the galaxy. These occasions earned Carlisle the reputation as a notorious peace negotiator, and as a symbol of galactic peace. (AUDIO: The Game)
 * At some point during his fifth incarnation, UNIT contacted the Doctor to inform him that his TARDIS had been discovered encased in rock at Pompeii during an archaeological excavation in 1980. At the time, the Fifth Doctor's TARDIS was located in Hyde Park. (AUDIO: The Fires of Vulcan)
 * The Fifth Doctor won the cricket league cup in Cheldon Bonniface. (PROSE: Happy Endings)

Alternative timelines
In an alternative timeline, the Doctor was able to save Adric. In another alternative timeline, the Doctor had his brain fried by a computer while substituting for a dead synch-op on the Sea Base in 2084. In a third alternative timeline, the Doctor never went to Androzani Minor. (PROSE: So Vile a Sin)

In one timeline, the Doctor died on Androzani Minor due to the Great Intelligence's interference. (TV: The Name of the Doctor)

Personality
The fifth incarnation was the most open and vulnerable of all the Doctors, coming across as naïve and inexperienced, acting like a child excited to see new worlds and foreign places. (TV: Castrovalva, Earthshock) He was neither pretentious nor selfish and reacted to situations rather than starting them, with his humanity making him panicky and indecisive under pressure, but he would use dissembling and deceit in order to avert a crisis or defeat an adversary. (TV: Frontios) His young appearance was reflected in the youthfulness of his companions, whom he treated like friends rather than subordinates, with their pain and sorrow affecting him deeply, (TV: Earthshock, Resurrection of the Daleks) and their safety his top priority. (TV: The Caves of Androzani) This incarnation also felt suited for settling down and starting a family. (AUDIO: Loups-Garoux, Winter)

However, the Doctor's boyish appearance, nervous energy, and charm all hid the fact that he was a Time Lord of great age, compassion, and experience. He was willing to take chances with companions like Vislor Turlough and Kamelion, who were originally threats, (TV: Mawdryn Undead, The King's Demons) even as he pretended to be unaware of it in order to grant Turlough the opportunity to do the right thing. (TV: Enlightenment) He was also willing to make enormous personal sacrifices simply to keep his word and liberate others from suffering, (TV: Mawdryn Undead) and would stop and help others while dealing with greater threats. (TV: Arc of Infinity)

After finding a cricket bat and discovering a room in his TARDIS dedicated to the sport shortly after his regeneration, the Doctor became a vivid fan of cricket, (TV: Castrovalva, Black Orchid) attending several famous matches, (AUDIO: The Roof of the World, Nekromanteia, The Emerald Tiger; PROSE: Graham Dilley Saves the World) and teaching his companions the rules of the game. (AUDIO: Phantasmagoria)

Despite his youthful body and love of cricket, the fifth incarnation was one of the least physical Doctors, preferring to use diplomacy to solve a problem. He was, however, still very capable when pushed to physical confrontations. (TV: The King's Demons) He gained trust by proving himself instead of using his vast experience as an excuse to take charge. Indeed, he worked willingly under the leadership of others who had the strong command presence that he lacked. This did not mean he did not take charge in moments of intensity, (TV: Kinda, Resurrection of the Daleks) or frustration. (TV: Time Crash)

The Doctor was notably sarcastic, especially towards Tegan and Adric, usually in the politest way possible. (TV: Castrovalva, The Five Doctors, Frontios) He also tried to find a positive approach to life, even if it was a delusional one, (AUDIO: Iterations of I) fixating on the idea that Mondas was 1950s Trafalgar Square, willfully ignoring the mine carts and giant underground cavern overhead, (AUDIO: Spare Parts) and when he and Nyssa were caught arrested for using future currency during the Jacobin era, the Doctor consoled Nyssa by pointing out that they still used Earth-based coins. (AUDIO: Circular Time) He identified himself as open minded, likening himself to Alice as he "tried to believe three impossible things before breakfast". (TV: The Five Doctors)

Being an open minded incarnation, the Fifth Doctor was willing to give his enemies the benefit of the doubt, such as when he met in the Death Zone on Gallifrey, and was willing to hear him out when the Master said he had come to aid the Doctor. When the High Council confirmed the Master's story, the Doctor admitted that he had done the Master an injustice by doubting him. (TV: The Five Doctors)

The fifth incarnation showed a great loathing for violence, needless bloodshed and the pain and suffering of others. (TV: The Visitation, Warriors of the Deep) He failed to execute Davros in cold blood, (TV: Resurrection of the Daleks) and, at the android's request, reluctantly killed Kamelion. (TV: Planet of Fire) Despite this, he gunned down foes when he deemed it necessary, (TV: Earthshock, Arc of Infinity, Resurrection of the Daleks) and did not move to save from a fiery death, though was deeply upset by his part in it. (TV: Planet of Fire) He also accepted a pistol from King Louis, but only so he would not contradict the hotheaded king. (AUDIO: The Church and the Crown)

Despite his pacifistic ways, the Fifth Doctor did posses a dark side, which he released upon his enemies when it was necessary. (TV: Earthshock) He could lose his temper when pushed too far, (TV: Arc of Infinity; AUDIO: Spare Parts) or when around someone who annoyed him, (TV: Time Crash) and also showed off an immature and childish side when he argued with Adric about returning to E-Space, a place he personally did not want to go to, coming up with every excuse he could to prevent them from going. (TV: Earthshock) He was also willing to physically slap someone to calm them down, as with Maxwell Edison. (COMIC: Stars Fell on Stockbridge) He could also get impatient with those around him, especially his companions. (TV: Earthshock, Snakedance)

Towards the end of his life, the Doctor displayed a more relaxed and controlled side. Even as he awaited execution on Androzani Minor, he was fiercely curious about the spectrox mined there. He still retained his sarcastic side, mocking Chellak's insistence on being addressed as "sir", and reacting with humour to Sharaz Jek's idea of him, the Doctor and Peri becoming "the best of companions". (TV: The Caves of Androzani)

Although he and Tegan often argued, he told Lady Adela Forster that she was "very dear" to him, (AUDIO: The Emerald Tiger) and told Tegan that he "[couldn't] bear the thought of not having [her] around". (PROSE: Qualia) In spite of this, the Doctor would often hide from her in the TARDIS' Cloister Room. (AUDIO: No Place Like Home) Tegan claimed that the Doctor often gave her "half pained, half patronising" looks and later described him as the most annoying man that she had ever met. (AUDIO: Aquitaine) On one occasion, she derisively referred to the Doctor as a "posho". (AUDIO: The Peterloo Massacre)

The Doctor disliked being referred to as "sweet". (AUDIO: The Entropy Composition)

Immediately after his regeneration, the Sixth Doctor claimed that his predecessor had "a sort of feckless charm [that] simply wasn't [him]", (TV: The Twin Dilemma) but later admitted to Evelyn Smythe that "being him was like a holiday. A very wonderful holiday." (AUDIO: The 100 Days of the Doctor)

The Seventh Doctor described the Fifth Doctor as "bland" and "not even one of the good ones", while the Fifth Doctor was repulsed by his future self's manipulative nature. (PROSE: Cold Fusion) However, despite the animosity between the two, in the Seventh Doctor's subconscious, the Fifth Doctor personified his future selves' conscience with his strong sense of compassion. (PROSE: Timewyrm: Revelation) The Eighth Doctor was more fond of his fifth incarnation than his two immediate predecessors, describing him as "terribly polite." (AUDIO: The Four Doctors)

The Tenth Doctor expressed a fondness for his fifth incarnation, seeing him as a turning point and stating that it was after his fourth regeneration when he began to enjoy his time in younger bodies. He also confessed that certain aspects of his wardrobe and personality were influenced by the Fifth Doctor. (TV: Time Crash)

When the Eleventh Doctor contacted his younger self through an Ovid sphere in England in the 1920s, he commented that his fifth incarnation was "grumpy" and "frowny" in part because he worried about being taken seriously due to his youthful appearance. (AUDIO: Smoke and Mirrors)

Two days after he recovered from his post-regeneration trauma, Tegan described the Doctor as "an incompetent lunatic who talks gibberish", and Adric saw him as an inferior replacement to the Fourth Doctor and a "feckless, frivolous dilettante". (AUDIO: Psychodrome) Roz Forrester did not trust the Fifth Doctor, as she believed the fact that he seemed so trustworthy was suspicious. (PROSE: Cold Fusion)

once described the Fifth Doctor as "the drippy blonde one" who "wanders around like nobody's who's ever played cricket ever." (AUDIO: The Two Masters)

After he and Peri became infected with Spectrox toxaemia, the Doctor became determined to save Peri from dying of the poison; stealing a spaceship, outrunning armed mercenaries, climbing deep into a cave with no oxygen and back, and finally carrying Peri to the TARDIS while in the paralysis stage of the poisoning, (TV: The Caves of Androzani) all while holding back the regenerative process. (AUDIO: Winter) When in the safety of the TARDIS, the Doctor selflessly gave Peri all that remained of the antidote, saving her life at the cost of his own, and redeeming himself for his failure to save Adric. (TV: The Caves of Androzani)

Habits and quirks
In an occasional reminder of his actual age, the Doctor would sport a pair of glasses when examining something. (TV: Castrovalva, Kinda, Frontios) These were his "brainy specs", which he wore to make him look "a bit clever". (TV: Time Crash) He often delegated some decisions to a simple flip of a coin. (TV: Kinda)

To encourage others, the Doctor would tell them to have a "brave heart", especially with Tegan. (TV: Earthshock, Enlightenment, Warriors of the Deep, The Awakening) He was also known to say, "Sorry, must dash", especially when leaving in a hurry. (TV: Time-Flight, The Five Doctors). Like his third incarnation, he would affectionately address people as "old chap". (AUDIO: Zagreus)

Typically, the Doctor would either stand with his hands in his pockets, flicking the long tails on his coat back in the process, (TV: Earthshock, The King's Demons, The Five Doctors, The Caves of Androzani) or stand with his hands crossed behind his back. (TV: Four to Doomsday, Earthshock, Arc of Infinity, The Five Doctors) He was also prone to dramatic turns, which usually caused his hair to sway wildly. (TV: Castrovalva, Earthshock, Mawdryn Undead, The Five Doctors, Warriors of the Deep, Resurrection of the Daleks)

Unlike his predecessor, the Fifth Doctor was not a particularly strong drinker. (AUDIO: The Kingmaker)

Skills
The Fifth Doctor was highly skilled at the sport of cricket, (TV: Black Orchid) often spending long periods of time playing the game. (PROSE: Happy Endings, Goth Opera; AUDIO: Autumn)

The Doctor could decipher the ingredients of a drink by smell alone; rosemary made him sneeze. (TV: Castrovalva) He also retained the swordfighting acumen and unarmed combat skills of his predecessors, although the latter was showcased sparingly, and only in self-defense. (TV: The Visitation, The King's Demons, Warriors of the Deep, Resurrection of the Daleks)

He carried a Molenski Univarius, that he claimed could fix anything, (AUDIO: The Axis of Insanity) and learned how to perform coin magic from Adric. (TV: Kinda)

After learning how to, (COMIC: 4-Dimensional Vistas) the Doctor was able to swim out of danger, even while dazed, and was capable of holding his breath for a long period of time. (TV: Warriors of the Deep)

Appearance
The Fifth Doctor resembled a young man in his late twenties, (TV: Logopolis) with, as Peri Brown described, "fair blonde hair, blue eyes, and a sweet smile". (AUDIO: Peri and the Piscon Paradox) As a side-effect of his regeneration, (PROSE: Cold Fusion) the Doctor's hair regularly changed length. (TV: Logopolis, Castrovalva)

Once, to make himself appear older, the Doctor grew a beard while he was stranded in 1867 London that helped him fit in with the scientific community. (AUDIO: The Haunting of Thomas Brewster)

When Affinity took on the Fifth Doctor's appearance to approach the Twelfth Doctor, he noted that the fifth incarnation was a "young fair-haired man in a pale coat and light striped trousers." (PROSE: Silhouette)

Clothing
The Fifth Doctor had two outfits, both based on traditional cricket whites. (TV: Castrovalva, The Awakening) So close were they to whites that he could take off his coat and play the sport without comments on his appearance. (TV: Black Orchid; COMIC: The Tides of Time)

His first outfit featured a long beige-coloured frock coat with red piping along the collar, lapels, sleeves, pockets and tails. Underneath this he wore a white, long-sleeved cricket jumper with a red and black V-Neck pattern, and, under that, a white dress shirt with a red interior and embroidered red question marks on the collars. His trousers were a unique pattern of brown and beige stripes. He also wore red or white socks and white plimsolls. He would top the look with a roll-up Panama hat that had a red band with a black and white pattern. (TV: Castrovalva)

After his clothes were ruined, (TV: Warriors of the Deep) he changed to a French grey coat with a longer collar and a jumper with a pattern of thick red and black lines on the bottom, the V-neck and sleeves. The dress shirt had a green interior and the pattern of the trousers changed to thick, orange lines. (TV: The Awakening) He sometimes wore suspenders adorned with question marks and, on one occasion, replaced his jumper with a beige coloured waistcoat that had a gold, white and red flora & fauna pattern. (TV: Planet of Fire)

He wore a stick of artificial celery on his left lapel (TV: Castrovalva, Enlightenment) for his allergy to gases in the praxis range of the spectrum. If any were near, the celery would turn purple and he would eat it. (TV: The Caves of Androzani) Ironically, the Doctor himself hated celery. (AUDIO: The Gathering)

When his first incarnation was placed on trial in London in 1963 as a result of killing a werewolf with a silver bullet, the Doctor dressed more conservatively, wearing an ill-fitting grey suit. (PROSE: The Juror's Story)

Casting
After the popular fourth incarnation, it was decided that the next incarnation should be played by an actor who was already firmly established in the British public's mind. Peter Davison was chosen, due in no small part to his popular and critically acclaimed role as Tristan Farnon in All Creatures Great and Small, a BBC series based on the books of James Herriot.

Richard Griffiths was considered for the role before Peter Davison was cast.

The age gap
Only 29 when cast, he remained "the youngest Doctor" until the 2009 hiring of 26-year-old Matt Smith. He was some eleven years younger than Tom Baker, the previous record holder, seven years younger than Paul McGann, and five years younger than future son-in-law, David Tennant. He was later recast as the Fifth Doctor in Time Crash in 2007, at which time he was 56, a year older than William Hartnell was during the filming of An Unearthly Child.

Bad hair years
To a degree never seen with any other regular character before or since, the Fifth Doctor was at the heart of a running continuity error. No make-up artist seemed to particularly care about the length of Davison's hair throughout season 19, despite the fact that it was known that serials were being recorded out of broadcast order.

Davison, a busy actor with other commitments, had his hair cut short at the beginning of Doctor Who's production blocks, because other projects like All Creatures Great and Small required it. For reasons unclear, he was then allowed to grow his hair several inches while filming as the Fifth Doctor. However, since the episodes aired out of order, his hair length quite obviously varied.

Were it not for the fact that most serials of season 19 narratively dovetailed into each other, it might be possible to simply believe that the character simply liked to go to the barber shop between stories. Unfortunately for this theory, Four to Doomsday was narratively tied to the beginning of Kinda, so the jarring hair growth can only be regarded as a production error.

Davison cut his hair prior to each season, and the production team allowed him to grow it throughout each of his production blocks. However, Snakedance was the final story of his tenure broadcast out of production order, and Arc of Infinity didn't obviously lead into it. Thus, although Davison was again allowed to grow his hair throughout the production of seasons 20 and 21, it never amounted to the kind of production error it was throughout season 19.

It's frequently remarked by Davison on DVD commentaries that real fans can tell the production order of episodes by the length of the Fifth Doctor's hair.

Brainy specs
In several DVD commentaries, Peter Davison claims he abandoned his half-moon glasses because Janet Fielding teased him when he used them. Fielding seemed to agree with this assessment on the commentary for Earthshock.

Celery
Davison agreed to wear a stick of celery on his lapel on the understanding that JNT would eventually have a writer explain the bizarre fashion statement. Though Davison thought the explanation would come earlier, the mystery was at last revealed in his final story. (DCOM: The Caves of Androzani) Ironically, Davison hated celery. When he was required to eat celery during the recording of Castrovalva, he found it deeply unpleasant. (DCOM: Castrovalva)

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