Nyssa is a fictional character in the long-running British science fiction television series Doctor Who. She is played by Sarah Sutton. Although Nyssa was created by writer Johnny Byrne for the single Fourth Doctor serial The Keeper of Traken, the production team subsequently decided she should be retained as a continuing character. Nyssa returned in the following serial, Logopolis, in which the Fourth Doctor regenerated, and remained as a companion of the Fifth Doctor. She was a regular in the programme from 1981 to 1983.
Adric is a fictional character played by Matthew Waterhouse in the long-running British science fiction television series Doctor Who. He was a young native of the planet Alzarius, which exists in the parallel universe of E-Space. A companion of the Fourth and Fifth Doctors, he was a regular in the programme from 1980 to 1982 and appeared in 11 stories. The name Adric is an anagram derived from the physicist Paul Dirac.
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.
Logopolis is the seventh and final serial of the 18th season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 28 February to 21 March 1981. It was Tom Baker's last story as the Fourth Doctor and marks the first appearance of Peter Davison as the Fifth Doctor and Janet Fielding as new companion Tegan Jovanka.
James Robert McCrimmon, usually simply called Jamie, is a fictional character played by Frazer Hines in the long-running British science fiction television series Doctor Who. A piper of the Clan MacLeod who lived in 18th-century Scotland, he was a companion of the Second Doctor and a regular in the programme from 1966 to 1969. The spelling of his surname varies from one script to another; it is alternately rendered as Macrimmon and McCrimmond. Jamie appeared in 20 stories.
Castrovalva is the first serial of the 19th season of the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts on BBC1 from 4 to 12 January 1982. It was the first full serial to feature Peter Davison as the Fifth Doctor. The title is a reference to the lithograph Castrovalva by M. C. Escher, which depicts the town Castrovalva in the Abruzzo region, Italy.
Janet Claire Mahoney, known professionally as Janet Fielding, is an Australian actress who starred in the BBC science fiction television series Doctor Who as companion Tegan Jovanka.
Earthshock is the sixth serial of the 19th season of the British science fiction television series Doctor Who. It was first broadcast in four twice-weekly parts on BBC1 from 8 to 16 March 1982. This serial marks the final regular appearance of Matthew Waterhouse as Adric and his climactic death, with the final episode featuring unique silent credits in memory of the character. It is also the first to feature the Cybermen since Revenge of the Cybermen in 1975.
Resurrection of the Daleks is the fourth serial of the 21st season in the British science fiction television series Doctor Who, which was first broadcast in two weekly parts on BBC1 between 8 February and 15 February 1984. The serial was intended to be transmitted as four 23-minute episodes but a late scheduling change by the BBC meant that it was transmitted as two episodes of 46 minutes; reruns restored it to its intended format.
The Fifth Doctor is an incarnation of the Doctor, the protagonist of the British science fiction television series Doctor Who. He is portrayed by Peter Davison.
The Fourth Doctor is an incarnation of the Doctor, the protagonist of the British science fiction television series Doctor Who. He is portrayed by Tom Baker.
Time-Flight is the seventh and final serial of the 19th season of the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts on BBC1 from 22 to 30 March 1982.
Divided Loyalties 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 Fifth Doctor, Tegan Jovanka, Nyssa, Adric and the Toymaker.
Cold Fusion is an original novel written by Lance Parkin and based on the long-running British science fiction television series Doctor Who. It features the Fifth Doctor, with Adric, Nyssa, and Tegan, immediately after Castrovalva. Also appearing is the Seventh Doctor, with Chris and Roz, from between the Virgin New Adventures novels Return of the Living Dad and The Death of Art. It was the only one of the Virgin Doctor Who novels to feature more than one Doctor.
In the long-running BBC television science fiction programme Doctor Who and related works, the term "companion" refers to a character who travels with, or shares adventures with, the Doctor. In most Doctor Who stories, the primary companion acts as an audience surrogate by providing the lens through which the viewer is introduced to the story, and often, the series itself.
Cobwebs is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. It was aired on BBC Radio 4 Extra from 16 to 19 May 2011.
The twenty-first season of British science fiction television series Doctor Who began on 5 January 1984 with the Fifth Doctor serial Warriors of the Deep, and ended with Colin Baker's first serial The Twin Dilemma. For the third time, the entire TARDIS crew changed over the course of a single season. John Nathan-Turner produced the series, with Eric Saward script editing.
The twentieth season of British science fiction television series Doctor Who began on 3 January 1983 with the story Arc of Infinity, and ended 16 March 1983 with The King's Demons. A 20th Anniversary special, The Five Doctors, followed in November 1983. John Nathan-Turner produced this series, with Eric Saward script editing.
The nineteenth season of British science fiction television series Doctor Who began on 4 January 1982 with Castrovalva, and ended with Time-Flight. John Nathan-Turner produced the series, with three script editors: Christopher H. Bidmead for the first story, Anthony Root for the next three and Eric Saward for the last three.
The eighteenth season of British science fiction television series Doctor Who consisted of seven four-episode serials broadcast from 30 August 1980 with the serial The Leisure Hive, to 21 March 1981 with the serial Logopolis. The season is Tom Baker's final as the Fourth Doctor before his regeneration into the Fifth Doctor, as well as Lalla Ward's as companion Romana II and John Leeson's as the voice of K9. For the second time, the entire main cast changed over the course of a single season. The season also sees the debut of Matthew Waterhouse as Adric, Sarah Sutton as Nyssa, and Janet Fielding as Tegan Jovanka, the three of whom would remain regular companions into the Fifth Doctor's era, as well as the return of the Master, portrayed both by Geoffrey Beevers and Anthony Ainley.
