Doctor Who Full Circle: Part Four (Season 18, Episode 12)
TV-PG
TV Episode | 24 min | Adventure, Drama, Family

Primary photo for Full Circle: Part Four

Doctor Who

Full Circle: Part Four (Season 18, Episode 12)

TV-PG

TV Episode | 24 min | Adventure, Drama, Family

As the Marshmen begin pouring into the Starliner thanks to an infected Romana, the Doctor and Adric hurry to create an antidote but in doing so discover a deep secret about the Marshmen and their connection to Adric's people.

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Cast	+ Add Cast
23 cast members

Name	Known for
Tom Baker Doctor Who Doctor Who See fewer	Doctor Who (1963)
Lalla Ward Romana Romana See fewer	Doctor Who: Shada (1992)
George Baker Login Login See fewer	On Her Majesty's Secret Service (1969)
James Bree Nefred Nefred See fewer	On Her Majesty's Secret Service (1969)
Alan Rowe Garif Garif See fewer	Les Misérables (1967)
Matthew Waterhouse Adric Adric See fewer	Doctor Who (1963)
Richard Willis Varsh Varsh See fewer	Rebecca (1979)
June Page Keara Keara See fewer	Doctor Who (1963)
Bernard Padden Tylos Tylos See fewer	The Legend of 1900 (1998)
Barney Lawrence Marshman Marshman See fewer	Doctor Who (1963)
John Leeson Voice of K.9 (voice) Voice of K.9 (voice) See fewer	Doctor Who (1963)
Graham Cole Marshman (uncredited) Marshman (uncredited) See fewer	Pareidolia (I) (2023)
Peter Dukes Citizen (uncredited) Citizen (uncredited) See fewer	'Allo 'Allo! (1982)
Ian Ellis Citizen (uncredited) Citizen (uncredited) See fewer	David Copperfield (1966)
Tom Gandl Citizen (uncredited) Citizen (uncredited) See fewer	Sex Lives of the Potato Men (2004)
Robert Goodman Citizen (uncredited) Citizen (uncredited) See fewer	Those About to Die (2024)
Keith Guest Marshman (uncredited) Marshman (uncredited) See fewer
Malcolm Harvey Citizen (uncredited) Citizen (uncredited) See fewer	Doctor Who (1963)
Steve Ismay Citizen (uncredited) Citizen (uncredited) See fewer	Little Dorrit (1987)
Jerry Judge Citizen (uncredited) Citizen (uncredited) See fewer	Pirates of the Caribbean: On Stranger Tides (2011)
Mykel Mills Citizen (uncredited) Citizen (uncredited) See fewer
Cathy Munroe Humanoid (uncredited) Humanoid (uncredited) See fewer
Stephen Watson Marshman (uncredited) Marshman (uncredited) See fewer	No Place Like Home (1983)