Directed by
| Derek Martinus | ... | (directed by) |
Writing Credits
| William Emms | ... | (written by) |
| Sydney Newman | ... | (creator) (uncredited) |
| Donald Wilson | ... | (co-creator) (uncredited) |
Cast (in credits order)
| William Hartnell | ... | Dr. Who | |
| Peter Purves | ... | Steven Taylor | |
| Maureen O'Brien | ... | Vicki | |
| Stephanie Bidmead | ... | Maaga | |
| Marina Martin | ... | Drahvin One | |
| Susanna Carroll | ... | Drahvin Two | |
| Lyn Ashley | ... | Drahvin Three | |
| Robert Cartland | ... | Rill Voice (voice) | |
| Willie Shearer | ... | Chumbley Operator (as William Shearer) | |
| Angelo Muscat | ... | Chumbley Operator | |
 |
Pepi Poupee | ... | Chumbley Operator |
| Rest of cast listed alphabetically: | |||
|
|
Bill Lodge | ... | Rill (uncredited) |
|
|
Tommy Reynolds | ... | Chumbley Operator (uncredited) |
Produced by
| Verity Lambert | ... | producer |
Production Design by
| Richard Hunt | ... | designer |
Costume Design by
| Daphne Dare | ... | (costumes supervised by) (uncredited) |
Makeup Department
| Sonia Markham | ... | make-up supervised by (uncredited) |
Sound Department
| Brian Hodgson | ... | special sound (uncredited) |
| George Prince | ... | sound (uncredited) |
Camera and Electrical Department
| Derek Hobday | ... | lighting (uncredited) |
| Ralph Walton | ... | lighting (uncredited) |
Music Department
| Ron Grainer | ... | composer: theme music |
Additional Crew
| Donald Tosh | ... | story editor |
| Angela Gordon | ... | production assistant (uncredited) |
| Sue Wills | ... | assistant floor manager (uncredited) |
| Marjorie Yorke | ... | assistant floor manager (uncredited) |
