Coat

A coat was a form of clothing worn on the upper body, much alike a jacket, but was more substantial in length.

Worn by the Doctor
The Doctor wore numerous coats throughout his life. The First Doctor wore a black Edwardian morning coat on at least one occasion, (TV: The Five Doctors) while the Second Doctor wore a brown fur coat over his usual attire when visiting locations with inhospitable climes. (TV: The Abominable Snowmen, The Ice Warriors, The Five Doctors)

The Fourth Doctor wore a variety of coats, among them a brown woollen overcoat (TV: The Ark in Space, The Sontaran Experiment, Genesis of the Daleks, Terror of the Zygons) a burgundy velvet frock coat, (TV: Pyramids of Mars, The Masque of Mandragora - The Deadly Assassin) a grey tweed frock coat (TV: The Android Invasion et al) a brown velvet frock coat, (TV: The Face of Evil et al) a light brown Harris tweed frock coat (TV: The Power of Kroll et al) and a greatcoat with green lining. (TV: The Leisure Hive onwards) He also briefly adopted a overcoat as part of the chauffeur uniform he used in an attempt to gain access to Harrison Chase's mansion. (TV: The Seeds of Doom)

The Fifth Doctor wore two similar frock coats, one with a lighter beige hue (TV: Castrovalva onwards) and another that was somewhat darker. (TV: The Awakening onwards) The Sixth Doctor initially wore a patchwork frock coat with several different colours and fabrics, (TV: The Twin Dilemma onwards) which he replaced with a similar coat in different shades of blue for a period (AUDIO: Real Time onwards) before returning to the original. (TV: Time and the Rani) The Seventh Doctor wore a duffel coat over his usual attire during his visit to Maiden's Point. (TV: The Curse of Fenric)

The Eighth Doctor wore a green velvet frock coat for much of his early life, (TV: Doctor Who, AUDIO: Storm Warning, Blood of the Daleks) replacing it with a similar one in blue after his original was destroyed onboard the Ophidius (COMIC: Ophidius) up until its demise on Earth in 2005. (COMIC: The Flood) Later in his life, he had adopted a green trench coat. (COMIC: The Pictures of Josephine Day, TV: The Night of the Doctor)

The Tenth Doctor often wore a brown overcoat over his regular attire, (TV: The Christmas Invasion onwards) while the Eleventh Doctor wore both a dark green moleskin greatcoat (TV: Let's Kill Hitler et al) and a tweed frock coat (TV: The Bells of Saint John) on various occasions. He also adopted a Victorian frock coat on two occasions, (TV: The Snowmen, The Time of the Doctor) and used a military greatcoat as part of a ploy to confuse Kahler-Tek during his visit to the town of Mercy, Nevada. (TV: A Town Called Mercy)

The Twelfth Doctor's outfit initially featured a dark coat with red lining. (TV: Deep Breath) Later in his travels with Clara Oswald, he adopted a new burgundy velvet coat. (COMIC: The Highgate Horror, TV: Face the Raven)

The Thirteenth Doctor took to wearing a hooded, lilac-blue trench coat with a dark blue interim and a rainbow pattern across the edges of it. (TV: The Woman Who Fell to Earth) While in 1955 Montgomery, Alabama, she intentionally tore her coat. She and Yasmin Khan gave the coat to seamstress Rosa Parks to repair to ensure she would leave work on time on the day of her historic arrest. (TV: Rosa)

Worn by companions
Captain Jack Harkness often wore a large blue RAF issue greatcoat. (TV: The Doctor Dances onwards)

Worn by others
While impersonating racing pilot Horation Hamilton, Zalenby wore a long leather flying coat and silk scarf. (PROSE: The Game of Death)

Jackie Tyler intended to slip a tenner in Elton Pope's coat pocket to pay for the pizza he was getting. However, Jackie found a photograph of her daughter in his pocket. Realising that Elton was using her to find the Tenth Doctor, Jackie angrily sent him away. (TV: Love & Monsters)

Shortly before her death at the hands of the Toclafane, Vivien Rook gave her coat to Tish Jones as she spoke with Lucy Saxon. (TV: The Sound of Drums)

Frank wore a raincoat and brogues, which he got muddy. (PROSE: The Party in Room Four)