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)
Brendan Charleson Billy Morgan Billy Morgan See fewer	Killer Elite (2011)
Siobhan Flynn Lisa Lisa See fewer	The Island (2005)
Nigel Harrison Steve Marshall Steve Marshall See fewer	Blue Ice (1992)
Eluned Jones Marjorie Haines Marjorie Haines See fewer	The Dark (2005)
Miranda Llewellyn-Jenkins Katie Katie See fewer	Crusade in Jeans (2006)
Tomas Lukes Harry Morgan Harry Morgan See fewer	Jonathan Creek (1997)
Ruth Madoc Jean Pryce Jean Pryce See fewer	Fiddler on the Roof (1971)
Peggy Mason Billy's Mother Billy's Mother See fewer	Very Annie Mary (2001)
Geraint Morgan Eric Eric See fewer	Hinterland (2013)
Anna Mountford Suzanne Pryce Suzanne Pryce See fewer	Prime Suspect: The Last Witness (2003)
Olwen Rees Bethan Bethan See fewer	BBC Play of the Month (1965)
Anita Reynolds Vicar Vicar See fewer	I Used to Be Famous (2022)
Andrew Sachs Peter Pryce Peter Pryce See fewer	Fawlty Towers (1975)
Kerry Joy Stewart Janice Janice See fewer	King Arthur: Excalibur Rising (2017)
Rosanna Ward Claire's Friend Claire's Friend See fewer	Jack of Hearts (1999)