Guest Stars Peter Barkworth as Clent Peter Sallis as Penley Wendy Gifford as Miss Garrett Angus Lennie as Storr Michael Attwell as Ice Warrior Isbur Tony Harwood as Ice Warrior Rintan Roger Jones as Ice Warrior Zondal George Waring as Arden Bernard Bresslaw as Varga the Ice Warrior Leader Sonny Caldinez as Ice Warrior Turoc
