| Cast | Jon Pertwee (as The Doctor), Katy Manning (as Jo Grant), Paul Whitsun-Jones (as The Marshal), George Pravda (as Jaeger), Christopher Coll (as Stubbs), Rick James (2) (as Cotton), James Mellor (as Varan), Jonathan Sherwood (as Varan's Son), Garrick Hagon (as Ky), John Hollis (as Sondergaard), Geoffrey Palmer (as Administrator), Peter Howell (3) (as Investigator), David Arlen (as Warrior Guard), Roy Pearce (as Guard), Damon Sanders (as Guard), Martin Taylor (as Guard), Sidney Johnson (as Old Man), John Scott Martin (as Mutt) |
