Name	Known for
Pauline Yates Harriet Preston Harriet Preston See fewer	Harriet's Back in Town (1972)
William Russell Tom Preston Tom Preston See fewer	The Great Escape (1963)
Miranda Bell Jane Preston Jane Preston See fewer	The Imitation Game (2014)
Kim Hardy Jill Thornton Jill Thornton See fewer	Anne of Green Gables (1972)
Sue Holderness Jennifer Grant (as Susan Holderness) Jennifer Grant (as Susan Holderness) See fewer	Only Fools and Horses (1981)
Reginald Marsh Harvey Tyler Harvey Tyler See fewer	The Avengers (1961)
Carole Mowlam Margaret Foster Margaret Foster See fewer	Melissa (1964)
Edwin Richfield Frank Chapman Frank Chapman See fewer	Quatermass and the Pit (1967)
Valerie Van Ost Sue Webster (as Valerie Ost) Sue Webster (as Valerie Ost) See fewer	Carry on Doctor (1967)
Stephen Yardley Patrick Baker Patrick Baker See fewer	A Tale of Two Cities (1980)