Directed by
| Bill Hays | ||
Writing Credits (in alphabetical order)
| Bill MacIlwraith | ... | (writer) |
Cast (in credits order)
 |
John Robinson | ... | Sir Michael Gerrard |
| Edwin Richfield | ... | Mr. Pomeroy | |
| Peter Wyngarde | ... | Dr. Henri Lefebvre | |
| Moira Redmond | ... | Dr. Anna Shastikani | |
| George Coulouris | ... | Professor Vergas | |
| Rest of cast listed alphabetically: | |||
| Thomas Baptiste | ... | Mr. Matuka | |
| James Bree | ... | Professor Chernev | |
|
|
Diane Elliott | ... | Miss Adams |
|
|
David Blake Kelly | ... | Dr. Stephens |
|
|
Richard Mathews | ... | Hotel Manager |
| John Ringham | ... | Mr. Sarevsky | |
| Warren Stanhope | ... | Mr. Kramer | |
| John Tate | ... | Dr. Stroud | |
Produced by
| Andrew Osborn | ... | producer |
Music by
| Ken Thorne | ||
Editing by
| Roy Watts | ||
Production Design by
| Peter Seddon | ||
Camera and Electrical Department
| Dick Bush | ... | film cameraman |
Music Department
| Raymond Jones | ... | composer: incidental music |
Script and Continuity Department
| N.J. Crisp | ... | script editor |
Additional Crew
| N.J. Crisp | ... | story consultant |