Name	Known for
Raymond Francis Chief Det. Supt. Tom Lockhart Chief Det. Supt. Tom Lockhart See fewer	Miss Marple: The Body in the Library (1984)
Johnny Briggs Det. Sgt. Russell Det. Sgt. Russell See fewer	Coronation Street (1960)
Michael McStay Det. Sgt. Perryman Det. Sgt. Perryman See fewer	Doctor Who (1963)
Talfryn Thomas Illtyd Thomas Illtyd Thomas See fewer	St. Ives (1967)
Glynn Edwards Sgt. Dan Beynon Sgt. Dan Beynon See fewer	Zulu (1964)
Jon Rollason Ianto Rees Ianto Rees See fewer	Doctor Who (1963)
Reg Pritchard Owen Williams Owen Williams See fewer	Doctor Who (1963)
Richard Davies Gwyll Gruffd-Roberts Gwyll Gruffd-Roberts See fewer	Zulu (1964)
Christine Collins Ceridwen Rees Ceridwen Rees See fewer	The Return of Sherlock Holmes (1986)
Edward Evans Dai Prosser Dai Prosser See fewer	Lifeforce (1985)
Joan Newell Megan Williams Megan Williams See fewer	Secret Agent (1964)
Dafydd Havard Ezekiel Evans Ezekiel Evans See fewer	Zulu (1964)
Julie Milton Ellen Prosser Ellen Prosser See fewer	I Know Where I'm Going! (1945)
Peter Gill Rhonni Prosser Rhonni Prosser See fewer	Zulu (1964)
Gwyneth Owen Nellie Prothero Nellie Prothero See fewer	Festival (I) (1963)
Philip Voss Jaroslav Konowski Jaroslav Konowski See fewer	Octopussy (1983)