Name	Known for
Denis Lawson John Aneurin Lewis John Aneurin Lewis See fewer	Star Wars: Episode IV - A New Hope (1977)
Brenda Blethyn Jean Lewis Jean Lewis See fewer	Pride & Prejudice (2005)
Sheila Gish Elizabeth Gruffydd-Williams Elizabeth Gruffydd-Williams See fewer	Highlander (1986)
David Calder Vernon Gruffydd-Williams Vernon Gruffydd-Williams See fewer	The World Is Not Enough (1999)
Ann Beach Mrs. Davies Mrs. Davies See fewer	Notting Hill (1999)
Richard Davies Mr. Davies Mr. Davies See fewer	Zulu (1964)
Gareth Potter Ken Davies Ken Davies See fewer	The Tempest (IV) (2010)
Neil McCaul Gareth Probert Gareth Probert See fewer	Gnomeo & Juliet (2011)
Philip Bowen Bill Evans Bill Evans See fewer	Selling Hitler (1991)
Miles Anderson Paul Whetstone Paul Whetstone See fewer	The Tragedy of Macbeth (2021)
Albert Welling Theo James Theo James See fewer	The Good Liar (2019)
Davyd Harries Mervyn the dentist Mervyn the dentist See fewer	Overlord (1975)
Sharon Morgan Dentist's mistress Dentist's mistress See fewer	Apostle (2018)
Gary Meredith Stan John Stan John See fewer	That Uncertain Feeling (1986)
Arbel Jones Margot John Margot John See fewer	2point4 Children (1991)
Alison Matthews Eira Lewis Eira Lewis See fewer	That Uncertain Feeling (1986)