WSergeant 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 the 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.
WMuriel Frost is a fictional character who appeared in the Doctor Who Magazine comic strip based on the long-running British science fiction television series Doctor Who. An officer in the British Army, she worked for UNIT, an international organisation that defends the Earth from alien threats.
WJo Grant is a fictional character played by Katy Manning in the long-running British science fiction television series Doctor Who. Jo was introduced by Barry Letts and Terrance Dicks in the first episode of Doctor Who's eighth season (1971) as a new companion of series protagonist the Doctor, in his third incarnation. After the Doctor's previous companion Liz Shaw, a scientist and intellectual, the production team looked to introduce a less experienced companion to act as an audience surrogate. Jo appeared in 15 stories.
WMartha Jones is a fictional character played by Freema Agyeman in the long-running British science fiction television series Doctor Who and its spin-off series, Torchwood. She is a companion of the Tenth Doctor in Doctor Who, after Rose Tyler and before Donna Noble. According to the character's creator and executive producer Russell T Davies in his non-fiction book Doctor Who: The Writer's Tale, the character was developed from the beginning with the intention of appearing for a whole of the 2007 series, and to later make guest appearances in subsequent series and crossover appearances in the show's two spin-offs; Martha subsequently made guest appearances in Torchwood series two and in Doctor Who series four in 2008 and special episode "The End of Time" in 2010. Martha was also intended to make guest appearances in the 2009 series of Torchwood and The Sarah Jane Adventures, but could not due to the actress's other work commitments.
WBrigadier 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 the Earth.
WElizabeth "Liz" Shaw is a fictional character played by Caroline John in the long-running British science fiction television series Doctor Who and its spin-offs. A civilian member of UNIT, an international organisation that defends the Earth from alien threats, she was the companion of the Third Doctor for the 1970 season. Liz appeared in 4 stories.
WHarry 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.
WCaptain 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 the Earth from alien threats.