Directed by
| John Llewellyn Moxey | ||
Writing Credits (in alphabetical order)
| Frederick Knott | ... | (play) |
| Frederick Knott | ... | (screenplay) |
Cast (in credits order)
| Laurence Harvey | ... | Tony Wendice | |
| Diane Cilento | ... | Margo Wendice | |
| Hugh O'Brian | ... | Mark Halliday | |
| Cyril Cusack | ... | Chief Insp. Hubbard | |
| Nigel Davenport | ... | Lesgate | |
| Glynn Edwards | ... | Sgt. Morgan | |
| Garry Marsh | ... | Lionel | |
 |
Joanne Dainton | ... | The Barmaid |
|
|
Raymond Hardy | ... | P. C. Thompson |
|
|
Michael Gaunt | ... | Det. Sgt. Williams |
| Arthur Hewlett | ... | The Hotel Clerk | |
|
|
Huw Thomas | ... | The Announcer |
| Rest of cast listed alphabetically: | |||
| Carole Ann Ford | |||
Produced by
| Robert Arden | ... | associate producer |
| David Susskind | ... | producer |
Casting By
| Alan Shayne | ||
Art Department
| John Clements | ... | set designer |
Costume and Wardrobe Department
| Ernest Hewitt | ... | costumes |
