Name	Known for
Peter Egan Michael Gethin Michael Gethin See fewer	The Wedding Date (2005)
Robert Urquhart Lord James Gethin Lord James Gethin See fewer	The Curse of Frankenstein (1957)
Bill Maynard Sefton Garrett Sefton Garrett See fewer	Heartbeat (1992)
Philip Madoc Elliott Morris Elliott Morris See fewer	The Avengers (1961)
Sarah Douglas Jennie Garrett Jennie Garrett See fewer	Superman (1978)
Richard Hurndall Mackie Mackie See fewer	Oil Strike North (1975)
Dennis Burgess Sir Austen Firth Sir Austen Firth See fewer	The Elephant Man (1980)
Wallas Eaton Pendry Pendry See fewer	Complete and Utter History of Britain (1969)
Meredith Edwards Meirion Ryder Meirion Ryder See fewer	A Run for Your Money (1949)
Jacqueline Hurst Sally Neville Sally Neville See fewer	The Inheritors (1974)
John Ogwen Alun Ryder Alun Ryder See fewer	Doctor Who (1963)
Richard Parry Idwal Tonna Idwal Tonna See fewer	Under Milk Wood (1971)
Mary Tamm Liz Fisher Liz Fisher See fewer	Doctor Who (1963)
Frederick Treves Lister Lister See fewer	The Big Pull (1962)
Beryl Williams Mrs. Taylor Mrs. Taylor See fewer	Nel (1990)
Heather Wright Eleanor Gethin Eleanor Gethin See fewer	The Belstone Fox (1973)