Doctor Who spin-offs refers to material created outside of, but related to, the long-running British science fiction television series Doctor Who.
Ian Chesterton is a fictional character in the British science fiction television series Doctor Who and a companion of the First Doctor. He was played in the series by William Russell, and was one of the members of the programme's first regular cast, appearing in the bulk of the first two seasons from 1963 to 1965. In a film adaptation of one of the serials, Dr. Who and the Daleks (1965), he was played by Roy Castle, but with a very different personality and backstory. Ian appeared in 16 stories and 77 episodes.
Barbara Wright is a fictional character in the British science fiction television series Doctor Who and a companion of the First Doctor. She was one of the programme's first regulars and appeared in the bulk of its first two seasons from 1963–65, played by Jacqueline Hill. Prior to Hill being cast the part had originally been offered to actress Penelope Lee, who turned the role down. Barbara appeared in 16 stories. In the film version of one of the serials, Dr. Who and the Daleks (1965), Barbara was played by actress Jennie Linden, but with a very different personality and backstory, which includes her being a granddaughter of "Dr Who".
Susan Foreman is a fictional character in the British science fiction television series Doctor Who. The granddaughter of the Doctor and original companion of their first incarnation, she was played by actress Carole Ann Ford from 1963 to 1964, in the show's first season and the first two stories of the second season. Ford reprised the role for the feature-length 20th anniversary episode The Five Doctors (1983) and the 30th anniversary charity special Dimensions in Time (1993).
Vislor Turlough is a fictional character played by Mark Strickson in the long-running British science fiction television series Doctor Who. He was a companion of the Fifth Doctor, being a regular in the programme from 1983 to 1984. Turlough appeared in 10 stories.
Sergeant John Benton is a fictional character in the British science fiction television series Doctor Who, played by John Levene. He was the senior NCO of the British contingent of UNIT, an international organisation that defends Earth from alien threats. He appeared semi-regularly on the programme from 1968 to 1975, and was eventually promoted to the rank of Warrant Officer Class 1, holding the post of Regimental Sergeant Major.
Steven Taylor is a fictional character played by Peter Purves in the long-running British science fiction television series Doctor Who. A space pilot from Earth in the future, he was a companion of the First Doctor and a regular in the programme from 1965 to 1966. Steven appeared in 10 stories. Only three of the serials in which Steven appeared as a regular are complete in the BBC archive.
Sara Kingdom is a fictional character played by Jean Marsh in the long-running British science fiction television series Doctor Who. A security officer for Mavic Chen from the 40th century, she later joined the First Doctor and Steven to work against Chen's interests. She is sometimes classed as a companion of the First Doctor but the BBC's official Doctor Who website does not include her in their list of companions. Her status as a companion is commented upon in its Episode Guide.
James Anthony Coburn was an Australian television writer and producer, who spent much of his professional career living and working in the United Kingdom. He is best remembered for writing the first Doctor Who story, An Unearthly Child.
The First Doctor is the original incarnation of the Doctor, the protagonist of the BBC science fiction television series Doctor Who. He was portrayed by actor William Hartnell.
The Fifth Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series Doctor Who. He is portrayed by Peter Davison.
The Sixth Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series Doctor Who. He is portrayed by Colin Baker. Although his televisual time on the series was comparatively brief and turbulent, Baker has continued as the Sixth Doctor in Big Finish's range of original Doctor Who audio adventures.
The Fourth Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series Doctor Who. He is portrayed by Tom Baker.
In the long-running BBC television science fiction programme Doctor Who and related works, the term "companion" refers to a character who travels or shares adventures with the Doctor. In most Doctor Who stories, the primary companion acts as an audience surrogate. They provide the lens through which the viewer is introduced to the series. The companion character often furthers the story by asking questions and getting into trouble; also by helping, rescuing, or challenging the Doctor. This designation is applied to a character by the show's producers and appears in the BBC's promotional material and off-screen fictional terminology. The Doctor also refers to the show's other leads as their "friends" or "assistants"; the British press have also used the latter term.
Vicki is a fictional character played by Maureen O'Brien in the long-running British science fiction television series Doctor Who. An orphan from the 25th century, she was a companion of the First Doctor and a regular in the programme in Seasons 2 and 3 in 1965. Her last name was never revealed during the series. Vicki appeared in 9 stories.
The Five Companions is a Big Finish Productions audiobook based on the long-running British science fiction television series Doctor Who. It is free to subscribers and released with Army of Death.
The third season of British science fiction television series Doctor Who began on 11 September 1965 with the story Galaxy 4 and ended on 16 July 1966 with The War Machines. Only 17 out of 45 episodes survive in the BBC archives; 28 remain missing. As a result, only 3 serials are complete.
Dalek Empire is an audio play series made by Big Finish Productions about the Daleks. This series ties in elements from the Dalek Empire arc in the Doctor Who: The Monthly Range, a storyline containing the releases The Genocide Machine, The Apocalypse Element, The Mutant Phase and The Time of the Daleks.
Doctor Who: The Early Adventures is a series of audio dramas based on the British television series Doctor Who and produced by Big Finish Productions.