 | Philip Sayer als Sam Philips |
 | Bernice Stegers als Rachel Philips |
 | Danny Brainin als Joe Daniels |
 | Maryam d'Abo als Analise Mercier |
 | Simon Nash als Tony Phillips |
 | Peter Mandell als Clown |
 | David Cardy als Michael |
 | Anna Wing als Mrs. Goodman |
 | Robert Fyfe als Doctor |
 | Katherine Best als Jane |
| Robert Pereno als Ben |
| Sean Crawford als Commando |
| Tim Dry als Monster |
 | Susie Silvey als Woman in Cottage |
 | Arthur Whybrow als Mr. Knight |
| Anna Mottram als Teacher |
| Robert Austin als Van Driver |
| Vanya Seager als Paula Phillips |
 | Kevin Allen als Joe’s Assistant (uncredited) |
| Harry Bromley Davenport | Director |
| Harry Bromley Davenport | Story |
| Iain Cassie | Writer |
| Michel Parry | Story |
| Robert Smith | Writer |
| Mark Forstater | Producer |
| Joyce Gallie | Casting |
| Andrew Mollo | Art Direction |
| Nicolas Gaster | Editor |
| John Metcalfe | Director of Photography |
| Robert Shaye | Executive Producer |
| James Crawford | Associate Producer |
| Harry Bromley Davenport | Original Music Composer |
| Tom Harris | Special Effects Supervisor |
| Jo Ann Kaplan | Additional Dialogue |
| Vivien Pottersman | Production Manager |
| Jake Wright | First Assistant Director |
| John Simmons | Camera Operator |
| Mike Metcalfe | Focus Puller |
| John Midgley | Sound Mixer |
| David Sutton | Boom Operator |
| Ken Scrivener | Sound Mixer |
| Robin Grantham | Makeup Supervisor |
| John Webber | Special Effects Makeup Artist |
| Barry Richardson | Hairdresser |
| Joyce Gallie | Casting Director |
| Philippe Pickford | Wardrobe Supervisor |
| Peter Body | Assistant Art Director |
| Charles Ware | Sound Editor |
| Jo Ann Kaplan | Assistant Editor |
| Jo Hidderley | Clapper Loader |
| Ed Buziak | Still Photographer |
| Michael Zimbrich | Second Assistant Director |
| Andrew Warren | Second Assistant Director |
| Hugh O'Donnell | Location Manager |
| Terry Connors | Production Accountant |
| Wendy Tayler | Publicist |
| Maggie Jones | Continuity |
| Marjorie Lavelly | Continuity |
| Dave Newton | Property Master |
| Reg Wheeler | Props |
| Michael Woollard | Gaffer |
| Jim Beeby | Electrician |
| Robert Bonecci | Electrician |
| Bill Perren | Painter |
| Antonella Mancini | Production Secretary |
