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Christine Kavanagh as Alison Wells |
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John Lynch as Peter Carson |
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Kenneth Cranham as Hennessey |
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Gary Mavers as Forester |
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George Costigan as Schaffer |
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Douglas Mann as Chad |
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Pip Torrens as Windeler |
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Sebastian Shaw as Dr. Liawski |
| Directing | Lawrence Gordon Clark | Director |
| Writing | Stephen Gallagher | Novel |
| Writing | Stephen Gallagher | Screenplay |
| Sound | Nigel Hess | Original Music Composer |
| Camera | Ken Westbury | Director of Photography |
| Production | Sheila Trezise | Casting |
| Editing | Brian Peachey | Editor |
| Art | Chris Edwards | Production Design |
| Production | Archie Tait | Executive Producer |
| Production | Brenda Reid | Executive Producer |
| Production | Nick Gillott | Producer |
| Art | Humphrey Bangham | Art Direction |
| Costume & Make-Up | Derek Hyde | Costume Design |
| Costume & Make-Up | Penny Bell | Makeup Artist |
| Costume & Make-Up | Sue Black | Hairstylist |
| Production | David Fitzgerald | Executive In Charge Of Production |
| Production | Mike Nunn | Executive In Charge Of Production |
| Production | Jake Wright | Production Supervisor |
| Sound | Philip Bothamley | Sound Editor |
| Sound | Tony Dawe | Production Sound Mixer |
| Sound | Chris Gurney | Boom Operator |
| Sound | Jim Roddan | Sound Editor |
| Sound | Brian Saunders | ADR Mixer |
| Sound | Harry Fairbairn | Sound |
| Visual Effects | John Cormican | Creature Design |
| Visual Effects | Chris Fitzgerald | Creature Design |
| Visual Effects | David Beavis | Special Effects Supervisor |
| Visual Effects | Gary Bunn | Creature Design |
| Camera | Nigel Slatter | Camera Operator |
| Directing | Sarah Garner | Script Supervisor |
