Frock coat
A frock coat was an article of clothing.
The First Doctor wore an Edwardian frock coat. (COMIC: Moon Landing, PROSE: Sanctuary)
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 Eighth Doctor wore many frock coats on forest green, (TV: Doctor Who), navy blue, (COMIC: Dreadnought), or olive green. (COMIC: Ophidius)
During his retirement on the Victorian era, the Eleventh Doctor wore a burgundy frock coat. (TV: The Great Detective, The Snowmen) When travelling with Clara Oswald, he wore a frock coat of eggplant purple cashmere. (TV: The Bells of Saint John-The Time of the Doctor)
The Twelfth Doctor wore a frock coat of black velvet. (TV: The Pilot, onwards)
The Curator, taking the form of an older Sixth Doctor, wore a violet frock coat with a silver cat brooch. (AUDIO: Crossed Lines)
Romana wore frock coats in scarlet (TV: The Horns of Nimon) or beige. (TV: State of Decay)
The Master wore frock coats during his Saxon (TV: World and Time Enough) and Spy incarnations. (TV: Spyfall)