Frederick was educated in Germany and France. He came to England in 1939 and took up acting at the suggestion of his English headmaster. He attended the Guildhall School of Music and Drama in London between 1946 and 1948 and started his stage career at preston Rep in 1949. Many rep seasons in provinces before West End appearances including 'The Comedy of Errors', 'Lock Up Your Daughters', 'The Potsdam Quartet', 'Big Fish, Little Fish', 'For Adults Only', 'A Patriot For Me', 'Mrs. Gibson's Boys' and 'Salad Days'. Frederick started his television career in 1955 and went into films in 1956. He continued to act in all strands of the profession until his death.
Indiana Jones and the Last Crusade
1989
Voyage of the Damned
1976
The One That Got Away
1957
I Was Monty's Double
1958
Scorpio
1973
The Seven-Per-Cent Solution
1976
Slaughter Day
1972
The Passage
1979
Cold Comfort Farm
1995
Ice Cold in Alex
1958
The Looking Glass War
1970
Nijinsky
1980
Selling Hitler
1993
Play It Cool
1962
One of Those Things
1971
Song of Norway
1970
The Naked Sun
1969
Winterspelt 1944
1978
The Black Tent
1956
At the Fountainhead (Of German Strength)
1980
The Potsdam Quartet
1981
Home-Movies
1979
The Limbo Line
1969
Doctor Who: Planet of Evil
1975
Doctor Who: The Savages
2025
Doctor Who: The Savages
1966
Doctor Who: The Invisible Enemy
1977