Name	Known for
Jon Pertwee Doctor Who Doctor Who See fewer	Doctor Who (1963)
Roger Delgado Master Master See fewer	Doctor Who (1963)
Katy Manning Jo Grant Jo Grant See fewer	When Darkness Falls (I) (2006)
Edwin Richfield Captain Hart Captain Hart See fewer	Quatermass and the Pit (1967)
Clive Morton Trenchard Trenchard See fewer	Kind Hearts and Coronets (1949)
Donald Sumpter Commander Ridgeway Commander Ridgeway See fewer	In the Heart of the Sea (2015)
David Griffin Lt. Commander Mitchell Lt. Commander Mitchell See fewer	Keeping Up Appearances (1990)
June Murphy 3rd Officer Jane Blythe 3rd Officer Jane Blythe See fewer	Doctor Who (1963)
Alec Wallis Ldg. Telegraphist Bowman Ldg. Telegraphist Bowman See fewer	Doctor Who (1963)
Colin Bell C.P.O. Summers C.P.O. Summers See fewer	Doctor Who (1963)
Brian Vaughan Lt. Commander Watts Lt. Commander Watts See fewer	Smuggler's Bay (1964)
Stanley McGeagh Castle Guard Drew Castle Guard Drew See fewer	Gandhi (1982)
Pat Gorman Sea Devil Sea Devil See fewer	The Elephant Man (1980)
Peter Brace Naval Base Sailor (uncredited) Naval Base Sailor (uncredited) See fewer	Robin Hood: Prince of Thieves (1991)
Jim Dowdall Castle Guard (uncredited) Castle Guard (uncredited) See fewer	Harry Potter and the Deathly Hallows: Part 2 (2011)
Stuart Fell Sea Devil (uncredited) Sea Devil (uncredited) See fewer	Lifeforce (1985)
Steve Ismay Sea Devil (uncredited) Sea Devil (uncredited) See fewer	Little Dorrit (1987)
Brian Nolan Sea Devil (uncredited) Sea Devil (uncredited) See fewer	Ripping Yarns (1976)
Michael Stevens Sea Devil (uncredited) Sea Devil (uncredited) See fewer	UFO (1970)
Terry Walsh Castle Guard Barclay (uncredited) Castle Guard Barclay (uncredited) See fewer	Robin Hood: Prince of Thieves (1991)