Name	Known for
Paula Byrne Frances Whitney Frances Whitney See fewer	Hour of Mystery (1957)
Tom Adams Guy Marshall Guy Marshall See fewer	The Great Escape (1963)
Geoffrey Colville Dr. Mike Beckett (as Geoffrey Colvile) Dr. Mike Beckett (as Geoffrey Colvile) See fewer	Doctor Who (1963)
Joan Hooley Dr. Louise Mahler Dr. Louise Mahler See fewer	Secret Agent (1964)
Anthony Collin Mr. Unwin Mr. Unwin See fewer	Moody and Pegg (1974)
Chips Rafferty Mick Doyle Mick Doyle See fewer	Wake in Fright (1971)
Pamela Duncan Sister Doughty Sister Doughty See fewer	Play for Today (1970)
Grant Taylor Jim Singleton Jim Singleton See fewer	On the Beach (1959)
Jill Browne Sister Carole Young Sister Carole Young See fewer	Emergency-Ward 10 (1957)
Desmond Carrington Dr. Chris Anderson Dr. Chris Anderson See fewer	Billy Bunter of Greyfriars School (1952)
Annabelle Lee Miriam Watt Miriam Watt See fewer	The Moonstone (1959)
Pauline Devaney Jane Drew Jane Drew See fewer	Cheri (1973)
William Victor Eric Poole Eric Poole See fewer	In My Country (2017)
Gloria Salvador Marilyn Cox Marilyn Cox See fewer	Meet the Wife (1963)
Michael McKevitt Dr. James Gordon Dr. James Gordon See fewer	The Saint (1962)
Freda Bamford Mrs. Poole Mrs. Poole See fewer	The Avengers (1961)
Madge Ryan May Gorton May Gorton See fewer	A Clockwork Orange (1971)