| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anthony Asquith | Crew | Directing | Director |
 Anthony Havelock-Allan | Crew | Production | Producer |
Arthur Alcott | Crew | Crew | Production Controller |
Benjamin Frankel | Crew | Sound | Original Music Composer, Conductor |
Denis Holt | Crew | Production | Production Manager |
George Tabori | Crew | Writing | Story |
Gordon K. McCallum | Crew | Sound | Sound Mixer |
Jack Asher | Crew | Camera | Director of Photography |
John Box | Crew | Art | Art Direction |
John W. Mitchell | Crew | Sound | Sound Recordist |
 Robert Asher | Crew | Directing | Assistant Director |
Robin Estridge | Crew | Writing | Writer |
Roger Cherrill | Crew | Sound | Sound Editor |
Yvonne Caffin | Crew | Costume & Make-Up | Costume Design |
Frederick Wilson | Crew | Editing | Editor |
H. A. R. Thomson | Crew | Camera | Camera Operator |
Waleen Whitworth | Crew | Costume & Make-Up | Hairdresser |
Kathleen Hosgood | Crew | Directing | Continuity |
 Aubrey Mather | Cast | Actor | Waiter (uncredited) |
Bernard Rebel | Cast | Actor | Stefan |
 Betty Marsden | Cast | Actress | Mrs. Forrester (uncredited) |
 David Knight | Cast | Actor | Ted Hutchens |
 David Kossoff | Cast | Actor | Geza Szobek |
 Dora Bryan | Cast | Actress | Switchboard Operator (uncredited) |
 Dwight D. Eisenhower | Cast | Actor | Himself, in photo (uncredited) |
 Jill Adams | Cast | Actress | Judy (uncredited) |
 Joan Sims | Cast | Actress | Telephone Operator, American Embassy (uncredited) |
 John McLaren | Cast | Actor | Col. Margetson |
 Joseph Tomelty | Cast | Actor | Moffatt |
 Odile Versois | Cast | Actress | Anna Szobek |
 Paul Carpenter | Cast | Actor | Gregg Pearson |
 Percy Herbert | Cast | Actor | Richards (uncredited) |
 Peter Dyneley | Cast | Actor | Regan (uncredited) |
 Peter Illing | Cast | Actor | Dr. Weissbrod |
 Robin Bailey | Cast | Actor | Thomas Cook cashier (uncredited) |
 Russell Waters | Cast | Actor | Counterman (uncredited) |
 Sam Kydd | Cast | Actor | Driver, Embassy car JAK711 (uncredited) |
 Theodore Bikel | Cast | Actor | Joseph |
 Victor Maddern | Cast | Actor | Sailor (uncredited) |
| Person | Type | Job | Role(s) |
