58 minutes
10/11/1965
On Jupiter's moon Ganymede, an alien life-form has taken over the body of a human astronaut, creating an almost perfect copy. It then begins the long return journey to Earth.
Alexander Davion
as Dr. Crawford
David Hemmings
as Roger Westcott
Charles Tingwell
as Captain Jaffe
Peter Fraser
as Donnie Chaffer
Tony Wager
as Jensen
Keith Buckley
as Scotty McIntyre
David Savile
as Gerry
Geoffrey Kenion
as Dave
Barry Ashton
as Frank
David Munro
as Ken
Hedger Wallace
as Commander
Lew Luton
as Officer
Derek Martin
as Guard