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