The Ark in Space (1)
Show: Doctor Who --> Season: 12 - Season 12
AirDate: 1/25/1975
Runtime: 25
Voting: 9 (7)

Overview: The Doctor's attempt to give Harry a trip in the TARDIS sees the two of them and Sarah Jane arriving onboard a space station in the far future, with some rather deadly security mechanisms.
Peter Tuddenham
Computer (voice)
Gladys Spencer
High Minister (voice)
Terry Walsh
Wirrn Operator (uncredited)