Name	Known for
William Abney Dr. Muller Dr. Muller See fewer	Journey to the Unknown (1968)
Noele Gordon Meg Richardson Meg Richardson See fewer	Crossroads (1964)
Diane Grayson Penny Richardson Penny Richardson See fewer	The Prime of Miss Jean Brodie (1969)
Pamela Greenall Ruth Fraser Ruth Fraser See fewer	Special Branch (1969)
Brian Hankins Derek Maynard Derek Maynard See fewer	Lorna Doone (1963)
Susan Hanson Diane Lawton Diane Lawton See fewer	Crossroads (1964)
Ken Herbert Mr. Fourati Mr. Fourati See fewer	Space Command (2020)
Jacqueline Holborough Shirley Perkins Shirley Perkins See fewer	Helen West (2002)
Diane Holland Sarah Maynard Sarah Maynard See fewer	Hi-de-Hi! (1980)
Stanley Illsley Colonel Waterton Colonel Waterton See fewer	The Siege of Sidney Street (1960)
Jeffrey Isaac Adaz Adaz See fewer	Doctor Who (1963)
Lew Luton Geoffrey Steele Geoffrey Steele See fewer	A Countess from Hong Kong (1967)
Michael Martin Customs Official Customs Official See fewer	Secret Agent (1964)
Sue Nicholls Marilyn Gates Marilyn Gates See fewer	Coronation Street (1960)
Jenny Russell Melanie Straker-Orde Melanie Straker-Orde See fewer	Our Last Spring (1960)
Joy Stewart Gwen Richardson Gwen Richardson See fewer	Pardon the Expression (1965)
Roger Tonge Sandy Richardson Sandy Richardson See fewer	Crossroads (1964)