Theory:Timeline - The Master (Tremas)

This page lists appearances of played by Anthony Ainley in the order in which he experienced them. It relies on much speculation to fit semi-contradictory sources together, and should absolutely not be seen as representative of this wiki's general policy.

After the Thirteenth Master stole the body of Tremas, this new Master adopted a rather distinct persona. The full timeline of the Thirteenth Master can be found here.

Opposing the Fifth Doctor

 * TV: The Deadly Assassin
 * steals the body of Tremas.


 * TV: Logopolis
 * Set almost immediately after The Keeper of Traken. The Master's thwarted plan to hold the universe at ransom results in the Fourth Doctor regenerating.


 * TV: Castrovalva
 * Set immediately after Logopolis, with the Master trying to trap the Fifth Doctor in Castrovalva, only to end up trapped in there himself.


 * PROSE: The Unwanted Gift of Prophecy
 * Set immediately after the Master abducts Adric during Castrovalva: Part One.


 * PROSE: Toy
 * Set during Castrovalva: Part Two, before the Doctor is brought to the city.


 * AUDIO: Smoke and Mirrors
 * The Master is still trapped in Castrovalva.


 * TV: Time-Flight
 * The Master has managed to escape from Castrovalva, but has damaged his TARDIS in the process. He attempts to use the Xeraphin gestalt to repair his ship, but is foiled by the Doctor and left trapped on Xeriphas.


 * TV: The King's Demons
 * The Master uses Kamelion, an android he found on Xeriphas, in an attempt to prevent the signing of the Magna Carta, but is thwarted when the Doctor takes Kamelion from him.


 * TV: The Five Doctors
 * The Master is summoned to Gallifrey by Borusa to assist the four trapped incarnations of the Doctor, but his help is denied and he attempts to kill the Doctors instead. After being subdued, the Master is sent away by Rassilon.


 * PROSE: The Velvet Dark
 * The Master has been stripped of his Trakenite body by the Time Lords for his failure in The Five Doctors, but he is able to regain it by siphoning energy from his past incarnations.


 * PROSE: Birth of a Renegade


 * TV: Planet of Fire
 * After he is shrunk by his own Tissue Compression Eliminator, the Master tries to use the Numismaton Gas of Sarn to restore himself, but is apparently disintegrated by the Doctor.


 * PROSE: A Town Called Eternity
 * Follows on from Planet of Fire, with the Master using the Fountain of Youth to restore his burned body.

Interfering in history

 * AUDIO: Winter
 * Set concurrently with TV: The Caves of Androzani, with the Master using his link with Kamelion to sabotage the Fifth Doctor's regeneration, only to be thwarted by Nyssa.


 * TV: The Mark of the Rani
 * The Master is still being asked how he survived the events of Planet of Fire.


 * PROSE: Master Faustus


 * COMIC: Crossing the Rubicon

Forging alliances

 * COMIC: The Abominable Showmen


 * COMIC: The Five Masters
 * Follows on directly from The Abominable Showmen.


 * TV: The Ultimate Foe
 * The Master assists the Sixth Doctor in his trial against the Valeyard.


 * AUDIO: Lesser Evils
 * Set between The Trial of a Time Lord and Survival. The Master claims to have been exiled on Alexis by the Time Lords, having had his TARDIS impounded.


 * PROSE: The Quantum Archangel
 * The Master recalls the events of The Ultimate Foe.

Further schemes

 * PROSE: The Time Savers
 * The Master has been trapped on Earth since his TARDIS' time-matter adjustment valve was stolen by the Doctor in their previous encounter.


 * PROSE: A Handful of Stardust


 * AUDIO: The Hollows of Time
 * The Master encounters the Sixth Doctor and Peri under the guise of "Professor Stream". The Big Finish website lists The Hollows of Time as a part of their "Master Collection".


 * AUDIO: The End of the Line
 * The Master is threatened by the Valeyard into leaving the Doctor alone.


 * PROSE: Winning

Alliance with Adam Mitchell

 * COMIC: Façades


 * COMIC: Cat and Mouse
 * The Master wears his cloak from Destiny of the Doctors, but has his youthful appearance and is unaffected by the Cheetah virus.


 * COMIC: The Choice
 * Follows on from Cat and Mouse, and leads directly into Endgame.


 * COMIC: Endgame


 * GAME: Doctor Who and the Mines of Terror


 * PROSE: Dr. Fifth
 * The Master is wearing his clothes from Survival.

The Cheetah Planet

 * The Master arrives on the Cheetah World, and takes control of the Cheetah People. (TV: Survival)


 * PROSE: Dr. Seventh
 * The Master is wearing his clothes from Survival, and is working with the Cheetah People, but does not appear to be infected with the Cheetah virus.


 * TV: Survival
 * As a Cheetah virus begins corrupting his systems, the Master has a final showdown with the Seventh Doctor, which ends with him being trapped on the exploding Cheetah World.

After Cheetah World

 * PROSE: The Eight Doctors
 * The Master's last encounter with the Doctor was on Cheetah World. The stress of that encounter drove the Master insane and inspired him to swallow a Deathworm Morphant as part of a plot intended to kill the Doctor.


 * PROSE: Stop the Pigeon
 * The Master is still infected with the Cheetah virus and loses control under stress.


 * PROSE: Prime Time
 * The Master has control of the virus, but is trying to acquire a new body as the virus will kill his Trakenite body within a year's time. The Doctor last met him in Stop the Pigeon.


 * Under unkown circumstances, the Master was able to best the Cheetah virus, and would no longer be inflicted by the disease.


 * PROSE: Omegamorphosis
 * The Master has a black goatee and is trying to steal another body, due to being in his final incarnation.


 * GAME: Destiny of the Doctors
 * The Master is no longer infected with the Cheetah virus, and has a much older appearance, with greying hair. After his plan to trap the seven incarnations of the Doctor in the Determinant is foiled by the Graak, the Master is captured by an unknown enemy.

Currently unplaced

 * These entries are placed here due to being part of ongoing storylines that have yet to offer sufficient enough evidence to be placed in a specific part of this Doctor's timeline, unless further evidence arises in the stories to come.

Awaiting placement

 * These entries are placed here until a suitable position in the timeline can be determined based on the available evidence.