| Peter Davison | ... | The Doctor | |
| Nicola Bryant | ... | Peri | |
| Christopher Gable | ... | Sharaz Jek | |
| John Normington | ... | Morgus | |
| Robert Glenister | ... | Salateen | |
| Maurice Roëves | ... | Stotz | |
| Martin Cochrane | ... | Chellak | |
| Roy Holder | ... | Krelper | |
| Barbara Kinghorn | ... | Timmin | |
| David Neal | ... | President |
| Episode Crew |
Directed by | |||
| Graeme Harper | |||
Writing credits | ||
| Robert Holmes | (writer) | |
Produced by | |||
| John Nathan-Turner | .... | producer | |
Film Editing by | |||
| Stephen Newnham | (video tape) (as Steve Newnham) | ||
Production Design by | |||
| John Hurst | |||
Costume Design by | |||
| Andrew Rose | |||
Makeup Department | |||
| Jan Nethercot | .... | makeup designer | |
| Shirley Stallard | .... | makeup designer | |
Production Management | |||
| Corinne Hollingworth | .... | production manager | |
| Elizabeth Trubridge | .... | production manager | |
Sound Department | |||
| Dick Mills | .... | special sound | |
| Scott Talbot | .... | studio sound | |
Special Effects by | |||
| John Peyre | .... | design effects | |
Visual Effects by | |||
| Stuart Brisdon | .... | visual effects designer | |
| Dave Chapman | .... | video effects | |
| Jim Francis | .... | visual effects designer | |
| Sid Sutton | .... | title sequence | |
Camera and Electrical Department | |||
| Don Babbage | .... | lighting director | |
| Alec Wheal | .... | camera supervisor | |
Editorial Department | |||
| Dinah Long | .... | vision mixer | |
Music Department | |||
| Ron Grainer | .... | composer: title music | |
| Roger Limb | .... | composer: incidental music | |
| Peter Howell | .... | music arranger: title music (uncredited) | |
Other crew | |||
| Alan Arbuthnot | .... | technical coordinator (as Alan Arbuthnott) | |
| June Collins | .... | production associate | |
| Juley Harding | .... | production assistant | |
| Sue Hedden | .... | assistant floor manager (as Susan Hedden) | |
| Eric Saward | .... | script editor | |
| Main series | Episode guide | Full cast and crew |
| Company credits | IMDb TV section | IMDb Adventure section |
| IMDb UK section | Add this title to MyMovies |