How old was John Challen in…

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John Challen was ? in Simulation Exercise as 'Writer'.

Movie Released: Sun, Jan 29 1984

John Challen was ? in Lifelike as 'Writer'.

Movie Released: Sat, Jan 26 1980

John Challen was ? in After the Solo as 'Writer'.

Movie Released: Tue, Nov 25 1975

John Challen was ? in Headmaster as 'Writer'.

Movie Released: Thu, Mar 14 1974

Sorted by Release Date
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages

John Challen was ? in Graham's Gang as 'Writer'.

TV Show Released: First Air Date
Mon, Nov 21 1977

John Challen was ? in Headmaster as 'Creator'.

TV Show Released: First Air Date
Mon, Feb 07 1977