Brigadier Sir Alistair Gordon Lethbridge-Stewart, generally referred to simply as the Brigadier, is a fictional character in the British science fiction television series Doctor Who, created by writers Mervyn Haisman and Henry Lincoln and played by Nicholas Courtney. He is one of the founders of UNIT, an international organisation that defends Earth from alien threats, and serves as commander of the British contingent. Presented at first as reluctant to accept the continuing aid of the Doctor, over time the Brigadier became one of the Doctor's greatest friends and his principal ally in defending Earth.
The Ultimate Foe is the fourth and final serial of the larger narrative known as The Trial of a Time Lord which encompasses the whole of the 23rd season of the British science fiction television series Doctor Who. It was first broadcast in two weekly parts on BBC1 on 29 November and 6 December 1986. This segment is also cited in some reference works under its working title of Time Incorporated. The title The Ultimate Foe is never used on-screen and was first used in relation to these episodes for the 1988 novelisation, with the two episodes that comprise the serial being referred to as The Trial of a Time Lord Parts Thirteen and Fourteen. This was the last story to feature Colin Baker as the Sixth Doctor, as Baker declined to do the regeneration for the following story, Time and the Rani.
The Virgin New Adventures are a series of novels from Virgin Publishing based on the British science-fiction television series Doctor Who. They continued the story of the Doctor from the point at which the television programme went into hiatus from television in 1989.
Doctor Who spin-offs refers to material created outside of, but related to, the long-running British science fiction television series Doctor Who.
Bernice Surprise Summerfield is a fictional character created by author Paul Cornell as a new companion of the Seventh Doctor in Virgin Publishing's range of original full-length Doctor Who novels, the New Adventures. The New Adventures were authorised novels carrying on from where the Doctor Who television series had left off, and Summerfield was introduced in Cornell's novel Love and War in 1992.
Harry Sullivan is a fictional character from the British science-fiction television series Doctor Who and is a companion of the Fourth Doctor. Played by Ian Marter, the character appears as a regular during the programme's twelfth season in 1974–1975.
Captain Mike Yates is a fictional character in the British science fiction television series Doctor Who, played by Richard Franklin. He was adjutant of the British contingent of UNIT, an international organisation that defends Earth from alien threats.
Mel, also sometimes referred to as Melanie, is a fictional character in the long-running British science fiction television series Doctor Who. A computer programmer from the 20th century who is a companion of the Sixth and Seventh Doctors, she was a regular in the programme from 1986 to 1987. Her family name was never revealed on-screen, but production notes and promotional literature refer to her as Melanie Bush. She was portrayed by Bonnie Langford. Mel appeared in six stories and is the penultimate companion of the classic series.
Dr Evelyn Smythe is a fictional character played by Maggie Stables in a series of audio plays produced by Big Finish Productions based on the long-running British science fiction television series Doctor Who. A professor of history from the 20th century with a fondness for chocolate, she is a companion of the Sixth Doctor and encounters the Seventh Doctor as well.
The Seventh Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series Doctor Who. He is portrayed by Scottish actor Sylvester McCoy.
The Valeyard is a fictional character from the long-running British science fiction television series, Doctor Who. He is described by the Master as an amalgamation of the Doctor's darker sides from between his twelfth and final incarnations. In the story The Trial of a Time Lord, comprising the whole of Season 23, the High Council of the Time Lords appoint the Valeyard as prosecutor at the Sixth Doctor's trial, hoping to have him executed and thereby remove the sole witness to their near destruction of life on Earth.
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. Within the series' narrative, the Doctor is a centuries-old alien Time Lord from the planet Gallifrey who travels in time and space in the TARDIS, frequently with companions. At the end of life, the Doctor regenerates; as a result, the physical appearance and personality of the Doctor changes. Baker portrays the sixth such incarnation: an arrogant and flamboyant character in brightly coloured, mismatched clothes whose brash and often patronising personality set him apart from all his previous incarnations.
The Past Doctor Adventures were a series of spin-off novels based on the long running BBC science fiction television series Doctor Who and published under the BBC Books imprint. For most of their existence, they were published side-by-side with the Eighth Doctor Adventures. The novels regularly featured the First through Seventh Doctors. The Infinity Doctors had an ambiguous place in continuity and featured an unidentified incarnation of the Doctor. The Eighth Doctor co-starred with the Fourth Doctor in one novel (Wolfsbane) and, after the Eighth Doctor Adventures had ceased publication, a novel featuring the Eighth Doctor and set between two earlier Eighth Doctor Adventures was published within the Past Doctor series.
The Ghosts of N-Space is a radio drama based on the long-running British science fiction television series Doctor Who. It was recorded in 1994 and finally broadcast in six parts on BBC Radio 2 from 20 January to 24 February 1996. This was the second Third Doctor radio play, following The Paradise of Death in 1993. Plans for subsequent serials were abandoned after the death of Jon Pertwee in May 1996.
Spiral Scratch is a BBC Books original novel written by Gary Russell and based on the long-running British science fiction television series Doctor Who. It features the Sixth Doctor and Mel. The debut adventure of the Seventh Doctor, Time and the Rani, begins with the Doctor regenerating with little explanation given; Russell's novel attempts to provide a "final story" for the Sixth Doctor and effectively serves as a prequel to Time and the Rani.
The Scales of Injustice is a Virgin Missing Adventures original novel written by Gary Russell based on the long-running British science fiction television series Doctor Who. It features the Third Doctor, Liz Shaw and UNIT.
Instruments of Darkness is a BBC Books original novel written by Gary Russell and based on the long-running British science fiction television series Doctor Who. It features the Sixth Doctor and Mel.
The Shadow in the Glass is a BBC Books original novel written by Stephen Cole and Justin Richards and based on the long-running British science fiction television series Doctor Who. It features the Sixth Doctor and Brigadier Lethbridge-Stewart, investigating the apparent resurrection of Adolf Hitler.
Time's Champion is a work of Doctor Who fan fiction, written by Chris McKeon on the basis of an original novel outline by Craig Hinton, and incorporating fragments of text written by Hinton before his death. It features the Sixth Doctor, Melanie Bush and Sergeant Benton, and is an exploration both of the origins of the Valeyard and the concept of the Doctor's role as "Time's Champion" in the Virgin New Adventures. It also features plot elements from Hinton's earlier book The Quantum Archangel.
The Sixth Doctor: The Last Adventure is a British audio drama based on the long-running British science fiction television series Doctor Who.
