The Doctor
Patrick Troughton
Jamie McCrimmon
Frazer Hines
Locke
Martin Cort
Sir James Gregson
Hugh Morton
Security Guard
Derrick Slater
Computer Voice
John Witty
Slaar
Alan Bennion
Grand Marshal
Graham Leaman
Ice Warrior
Steve Peters
Tony Harwood
Sonny Caldinez
Zoe Heriot
Wendy Padbury
Commander Radnor
Ronald Leigh-Hunt
Gia Kelly
Louise Pajo
Professor Eldred
Philip Ray
Fewsham
Terry Scully
Brent
Ric Felgate
Osgood
Harry Towb
Phipps
Christopher Coll
Music
Dudley Simpson
Director
Michael Ferguson
Writer
Brian Hayles