Trevor

 has several meanings pertinent to the Doctor Who universe and the real world. They are listed below in alphabetical order by surname. If no surname is available, alphabetisation occurs by the disambiguation term — that is, the bit between the parentheses in a title like Waitress (Vincent and the Doctor).

As only name

 * Haygoth, a Zygon disguising itself as an individual called "Trevor" (AUDIO: The Zygon Who Fell to Earth)
 * Trevor (Blue Moon) (PROSE: Blue Moon)
 * Trevor (The Daleks' Master Plan), a commentator of a cricket match on Earth (TV: The Daleks' Master Plan)
 * Trevor (The Longest Night) (AUDIO: The Longest Night)
 * Trevor (Made of Steel), a former policeman (PROSE: Made of Steel)
 * Trevor (The Stabber) (PROSE: The Stabber)

As first name

 * Trevor Gale (AUDIO: Night of the Stormcrow)
 * Trevor Ramsbottom (AUDIO: The Land of Wonder)
 * Trevor Ridgely (AUDIO: The Nowhere Place)
 * Trevor Sigma, an investigator from Earth who travelled to Terra Alpha (TV: The Happiness Patrol)
 * Trevor Sharp, an identity taken by Clyde Langer (TV: The Man Who Never Was)
 * Trevor Winstone (PROSE: The Hollow Men)

Guest

 * Trevor Georges, who played a vicar in TV: The Runaway Bride
 * Trevor Laird, who played Frax in TV: Mindwarp and Clive Jones in TV: Smith and Jones, The Sound of Drums and Last of the Time Lords
 * Trevor Lawrence, who played Lodge in TV: Invasion of the Dinosaurs
 * Trevor Martin, who played Time Lord 2 in TV: The War Games, a Fourth Doctor in the stage play Doctor Who and the Daleks in Seven Keys to Doomsday and voiced several characters for BBC Radio and Big Finish Productions

Monster specialists

 * Trevor St. John Hacker, who played a Nimon in TV: The Horns of Nimon

Extra

 * Trevor Thomas, who had an uncredited role as one of the children of the Tribe of Gum in TV: An Unearthly Child

Vocal

 * Trevor Bannister, who played Korbin Thessinger in AUDIO: Nocturne
 * Trevor Baxter, who played George Litefoot in TV: The Talons of Weng-Chiang, AUDIO: The Mahogany Murderers and the Jago & Litefoot audio series
 * Trevor Cooper, who played Takis in TV: Revelation of the Daleks and various roles for Big Finish Productions and Magic Bullet Productions
 * Trevor Littledale, who provided several voices for Big Finish Productions
 * Trevor White, who played Buddy Hudson in AUDIO: Starfall

Cameramen

 * Trevor Wimlett, who was an OB cameraman on TV: The Stones of Blood

Designers

 * Michael Trevor, who was designer on TV: The Ultimate Foe

Sound design, effects, music

 * Trevor Duncan, who composed stock music used as Doctor Who incidental music
 * Trevor Keats, who was dialogue editor on TV: Invasion of the Bane
 * Trevor Webster, who provided studio sound for several Doctor Who stories

Other

 * Trevor Ray, who was Terrance Dicks and Derrick Sherwin's assistant script editor
 * Richard Trevor, who was film editor on TV: Underworld

Comics

 * Trevor Goring, who drew COMIC: Captain Jack and the Selkie

Other

 * Trevor Baxendale, who wrote audio, comic and prose stories