| Person | Type | Job | Role(s) |
|---|---|---|---|
 Edward Carrick | Crew | Art | Art Direction |
Eric Cross | Crew | Camera | Director of Photography |
 J. Lee Thompson | Crew | Directing | Director |
James Liggat | Crew | Production | Casting |
 John Hawkesworth | Crew | Writing | Screenplay, Producer |
Julian Wintle | Crew | Production | Producer |
Laurie Johnson | Crew | Sound | Original Music Composer |
Leslie Parkyn | Crew | Production | Producer |
Noël Calef | Crew | Writing | Story |
Shelley Smith | Crew | Writing | Screenplay |
 Sidney Hayers | Crew | Editing | Editor |
Susan Dyson | Crew | Directing | Continuity |
Harry Ledger | Crew | Editing | Assistant Editor |
Geoffrey Kidd | Crew | Sound | Boom Operator |
 Anthony Dawson | Cast | Actor | Barclay |
Brian Hammond | Cast | Actor | Dal Parry |
 Christopher Rhodes | Cast | Actor | Inspector Bridges |
David Davies | Cast | Actor | Desk Sergeant |
Edward Cast | Cast | Actor | Det. Con. Thomas |
 George Pastell | Cast | Actor | Poloma Captain |
 Glyn Houston | Cast | Actor | Detective at Police Station (uncredited) |
 Harry Baird | Cast | Actor | Bridegroom (uncredited) |
 Hayley Mills | Cast | Actress | Gillie |
 Horst Buchholz | Cast | Actor | Korchinsky |
 Jim Brady | Cast | Actor | Pub Customer (uncredited) |
 John Mills | Cast | Actor | Superintendent Graham |
 Kenneth Griffith | Cast | Actor | Mr. Seymour |
 Marianne Stone | Cast | Actress | Mrs. Williams |
 Marne Maitland | Cast | Actor | Doctor |
 Megs Jenkins | Cast | Actress | Mrs. Phillips |
 Meredith Edwards | Cast | Actor | Williams |
 Michael Anderson Jr. | Cast | Actor | Boy with Cap Gun (uncredited) |
 Paul Stassino | Cast | Actor | Poloma First Officer |
 Peter Halliday | Cast | Actor | Seaman (uncredited) |
 Rachel Thomas | Cast | Actress | Mrs. Parry |
 Tom Bowman | Cast | Actor | Seaman (uncredited) |
 Yvonne Mitchell | Cast | Actress | Anya |
John Wilder | Cast | Actor | Police Line-Up (uncredited) |
Eynon Evans | Cast | Actor | Mr Morgan |
Jack May | Cast | Mr Willis (uncredited) | |
George Selway | Cast | Actor | Det. Sgt. Harvey |
John Howard | Cast | Detective (uncredited) | |
Stan Simmons | Cast | Referee (uncredited) | |
Harry Phipps | Cast | Man in Bar (uncredited) | |
Hubert Hill | Cast | Policeman (uncredited) | |
| Person | Type | Job | Role(s) |
