Patrick Troughton
饰:Dr Who
Alan Rowe
配:Dr Evans Space Control
Anneke Wills
饰:Polly
Patrick Barr
饰:Jack Hobson
Michael Wolf
饰:Nils
Barry Ashton
饰:Scientist Franz Schultz
饰:Scientist John Stacey No 15
Ron Pinnell
饰:Scientist Jim Elliot No 5
Frazer Hines
饰:Jamie
Michael Craze
饰:Ben
André Maranne
饰:(as Andre Maranne)
John Rolfe
饰:Sam Becket
Mark Heath
饰:Scientist Ralph Debayo
John Maxim
饰:(as John Wills)
饰:Scientist Pete Baker
Kit Pedler
Sydney Newman
Gerry Davis
Alexandra Tynan
Gerry Davis