Name	Known for
Keith Allen Jack Denby Jack Denby See fewer	The Others (2001)
Caroline Berry Caroline Evans Caroline Evans See fewer	The Feast (2021)
Anthony Booth Alan Hamilton Alan Hamilton See fewer	Corruption (1968)
Siobhan Flynn Lisa Lisa See fewer	The Island (2005)
Jenny Livesey Claire's Mum Claire's Mum See fewer	Jack of Hearts (1999)
Miranda Llewellyn-Jenkins Katie Katie See fewer	Crusade in Jeans (2006)
Ruth Madoc Jean Pryce Jean Pryce See fewer	Fiddler on the Roof (1971)
Geraint Morgan Eric Eric See fewer	Hinterland (2013)
Anna Mountford Suzanne Pryce Suzanne Pryce See fewer	Prime Suspect: The Last Witness (2003)
Lisa Redwood WPC WPC See fewer	Jack of Hearts (1999)
Olwen Rees Bethan Bethan See fewer	BBC Play of the Month (1965)
Peter Roberts Mark Mark See fewer	Jack of Hearts (1999)
Andrew Sachs Peter Pryce Peter Pryce See fewer	Fawlty Towers (1975)
Kerry Joy Stewart Janice Janice See fewer	King Arthur: Excalibur Rising (2017)
Steve Toussaint Joe Joe See fewer	House of the Dragon (2022)
Melanie Walters Sylvie Sylvie See fewer	Submarine (2010)
Rosanna Ward Claire's Friend Claire's Friend See fewer	Jack of Hearts (1999)