
John Slater
John Slater (22 August 1916 – 9 January 1975) was an English character actor who usually portrayed lugubrious, amiable cockney types. He was a familiar face in British films of the 1940s and appeared in many classic films of the period, including The Day Will Dawn (1942, US title The Avengers), Went the Day Well? (1942), We Dive at Dawn (1943), A Canterbury Tale (1944), The Seventh Veil (1945), It Always Rains on Sunday (1947) and Passport to Pimlico (1949). In later years, Slater moved into television, most notably he starred as Det. Sgt. Stone in Z-Cars from 1967 to 1974 where his episode count was beaten only by that of James Ellis. He died on 9 January 1975 from a heart attack, aged 58.
Known for

Maigret
1960

Z-Cars
1962

Theatre 625
1964

No Hiding Place
1959

The Million Pound Note
1954

Sir Arthur Conan Doyle
1967

The Flanagan Boy
1953

On Trial
1960

The New Lot
1943

The Ringer
1952

We Dive at Dawn
1943

Passport to Pimlico
1949

"Pimpernel" Smith
1941

A Canterbury Tale
1944

Armchair Theatre
1956

Violent Playground
1958

Unpublished Story
1942

Went the Day Well?
1942

Undercover
1943

Hot Summer Night
1959

Millions Like Us
1943

They Flew Alone
1942

The Seventh Veil
1945

I Live in Grosvenor Square
1945