Directed by
| Prudence Fitzgerald | ||
Writing Credits (in alphabetical order)
| N.J. Crisp | ... | (creator) |
| N.J. Crisp | ... | (writer) |
| Gerard Glaister | ... | (creator) |
Cast (in credits order)
| Marius Goring | ... | Prof. John Hardy | |
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Ann Morrish | ... | Dr. Jo Hardy |
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Victor Winding | ... | Det. Chief Insp. Fleming |
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Michael Farnsworth | ... | Det. Sgt. Ashe |
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Valerie Murray | ... | Sandra Hughes |
| Rest of cast listed alphabetically: | |||
| Steven Berkoff | ... | Mike Barratt | |
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Sheila Brennan | ... | Sally Edwards |
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Kate Brown | ... | Elaine |
| Peter Diamond | ... | 2nd Soldier | |
| Eric Dodson | ... | Motorist | |
| Peter Ellis | ... | Insp. Wallace | |
| Nerys Hughes | ... | Maria Denton | |
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David March | ... | Barman |
| Alan Meadows | ... | 1st Soldier | |
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Jeff Shankley | ... | Jimmy Dunn |
| David Sumner | ... | Ralph Denton | |
Produced by
| Gerard Glaister | ... | producer |
Editing by
| Anna Benson Gyles | ... | film editor |
Production Design by
| Tim Harvey | ||
Makeup Department
| Judith Clay | ... | makeup |
Sound Department
| John Delany | ... | sound |
Camera and Electrical Department
| John Dixon | ... | studio lighting |
| Terry Hunt | ... | film cameraman |
Costume and Wardrobe Department
| Reg Samuel | ... | costumes |
Music Department
| Dudley Simpson | ... | music |
Script and Continuity Department
| Geoffrey Tetlow | ... | script editor |
Additional Crew
| John Glaister | ... | technical advisor |
| William A. Roberts | ... | police advisor |