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Calvin Lockhart as Tom Newcliffe |
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Peter Cushing as Dr. Christopher Lundgren |
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Marlene Clark as Caroline Newcliffe |
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Charles Gray as Bennington |
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Anton Diffring as Pavel |
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Ciaran Madden as Davina Gilmore |
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Tom Chadbon as Paul Foote |
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Michael Gambon as Jan Jarmokowski |
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Sam Mansary as Butler |
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Andrew Lodge as Pilot |
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Carl Bohen as 1st Hunter |
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Eric Carte as 2nd Hunter |
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Valentine Dyall as Narrator (voice/ uncredited) |
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Annie Ross as Caroline Newcliffe (uncredited/voice) |
| Writing | Michael Winder | Screenplay |
| Editing | Peter Tanner | Editor |
| Production | Thelma Graves | Casting |
| Sound | Douglas Gamley | Original Music Composer |
| Camera | Jack Hildyard | Director of Photography |
| Art | John Stoll | Art Direction |
| Directing | Paul Annett | Director |
| Production | Robert H. Greenberg | Executive Producer |
| Production | John Dark | Associate Producer |
| Production | Milton Subotsky | Producer |
| Writing | James Blish | Story |
| Costume & Make-Up | Bobbie Smith | Hairstylist |
| Costume & Make-Up | Paul Rabiger | Makeup Artist |
| Production | Max Rosenberg | Producer |
| Sound | Ken Ritchie | Sound Mixer |
