How old was John Challen in…

Sorted by Release Date

John Challen was

? in Simulation Exercise

as 'Writer'.

Sun, Jan 29 1984

John Challen was

? in After the Solo

as 'Writer'.

Tue, Nov 25 1975

John Challen was

? in Headmaster

as 'Writer'.

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'.

First Air Date
Mon, Nov 21 1977

John Challen was

? in Headmaster

as 'Creator'.

First Air Date
Mon, Feb 07 1977