| Person | Type | Job | Role(s) |
|---|---|---|---|
 Agatha Christie | Crew | Writing | Novel |
 Corinne Rodriguez | Crew | Production | Casting |
Dennis Rogers | Crew | Camera | Grip |
Jack Williams | Crew | Production | Producer |
Joseph Horovitz | Crew | Sound | Original Music Composer |
Mike Humphreys | Crew | Camera | Director of Photography |
Pat Sandys | Crew | Writing | Screenplay |
 Tony Wharmby | Crew | Directing | Director |
Ron Fry | Crew | Production | Associate Producer |
Tony Cridlin | Crew | Camera | Grip |
Reg Mills | Crew | Sound | Sound Recordist |
Peter McKay | Crew | Production | Production Manager |
James Dillon | Crew | Art | Production Design |
Charlie McFadden | Crew | Sound | Boom Operator |
Penny Lowe | Crew | Costume & Make-Up | Costume Designer |
Ray Helm | Crew | Editing | Editor |
Bryan Bagge | Crew | Art | Production Design |
Peter Bloxham | Crew | Art | Property Buyer |
Graeme Perry | Crew | Directing | Third Assistant Director |
Joe Spence | Crew | Lighting | Gaffer |
Pauline Boulton | Crew | Costume & Make-Up | Makeup Supervisor |
John Tribe | Crew | Art | Graphic Designer |
Lynda Ostermeyer | Crew | Directing | Continuity, Production Assistant |
Geoff Harrison | Crew | Camera | Camera Operator |
Bill Challoner | Crew | Directing | Second Assistant Director |
John Quilty | Crew | Directing | First Assistant Director |
Philip Chambers | Crew | Directing | Stage Director |
Brian Kelly | Crew | Production | Location Manager |
 Alec McCowen | Cast | Actor | Sir James Peel Edgerton |
 Donald Houston | Cast | Actor | Boris |
 Francesca Annis | Cast | Actress | Tuppence |
Gabrielle Blunt | Cast | Actress | Annie |
 Gavan O'Herlihy | Cast | Actor | Julius P. Hersheimmer |
 George Baker | Cast | Actor | Whittington |
 Honor Blackman | Cast | Actress | Rita Vandemeyer |
 James Walker | Cast | Actor | First Clerk |
 James Warwick | Cast | Actor | Tommy |
 John Fraser | Cast | Actor | Kramenin |
 Joseph Brady | Cast | Actor | Dr. Hall |
 Matthew Scurfield | Cast | Actor | Conrad |
Mike Elles | Cast | Actor | Second Clerk |
Nicholas Geake | Cast | Actor | Watson |
 Peter Barkworth | Cast | Actor | Mr. Carter |
Peter Lovstrom | Cast | Actor | Henry |
 Reece Dinsdale | Cast | Actor | Albert |
 Roger Ostime | Cast | Actor | Ritz Receptionist |
Steve Fletcher | Cast | Actor | Messenger Boy |
Toria Fuller | Cast | Jane Finn | |
 Wolf Kahler | Cast | Actor | The German |
 Norman Hartley | Cast | Actor | Florist |
Phyllida Hewat | Cast | Woman in Tea Shop | |
Holly Watson | Cast | Child on Beach | |
Simon Watkins | Cast | Actor | Man at Astley Priors |
| Person | Type | Job | Role(s) |
