| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anthony Hinds | Crew | Production | Producer |
Bill Salter | Crew | Sound | Sound |
C. Wilfred Arnold | Crew | Art | Art Direction |
Ivor Slaney | Crew | Sound | Music |
James Needs | Crew | Editing | Editor |
Lester Powell | Crew | Writing | Story |
 Michael Carreras | Crew | Production | Casting |
Moray Grant | Crew | Camera | Camera Operator |
Muir Mathieson | Crew | Sound | Music Director |
Orville H. Hampton | Crew | Writing | Screenplay |
Philip Leakey | Crew | Costume & Make-Up | Makeup Artist |
Renée Glynne | Crew | Directing | Script Supervisor |
 Sam Newfield | Crew | Directing | Director |
Walter J. Harvey | Crew | Camera | Director of Photography |
Bill Griffiths | Crew | Costume & Make-Up | Hairstylist |
 Alastair Hunter | Cast | Actor | Det. Sgt. Reilly |
 Bernadette O'Farrell | Cast | Actress | Heather McMara |
 Betty Cooper | Cast | Dr. Campbell - Asylum Superintendent | |
 Campbell Singer | Cast | Actor | Inspector Rigby |
 Cesar Romero | Cast | Actor | Philip 'Phil' O'Dell |
 Dorinda Stevens | Cast | Actress | Girl at Film Studio (uncredited) |
 Geoffrey Keen | Cast | Actor | Christopher Hampden |
Jack Howarth | Cast | Actor | Minor Role (uncredited) |
Josephine Douglas | Cast | Actress | Nurse at Glenhaven Sanatorium (uncredited) |
 Katie Johnson | Cast | Actress | Mad Mary - Old Inmate at Murder Scene |
 Larry Taylor | Cast | Actor | Hospital Attendant (uncredited) |
 Lloyd Lamble | Cast | Actor | Martin Sorrowby |
 Lois Maxwell | Cast | Actress | Margaret 'Peggy' Maybrick |
Marguerite Brennan | Cast | Desk Clerk at Heather's Apartment | |
 Mary Mackenzie | Cast | Actress | Marilyn Durant |
Reed De Rouen | Cast | Actor | Connors |
 Richard Johnson | Cast | Actor | Danny McMara - Hit-and-Run Victim |
 Robert Dorning | Cast | Actor | Airline Reservations Clerk (uncredited) |
Stuart Nichol | Cast | Actor | Steve |
 Wensley Pithey | Cast | Actor | Sid - Bartender |
Frank Birch | Cast | Actor | Boswell - Airport Manager |
 Bill Fraser | Cast | Actor | Sales Manager |
 Peter Swanwick | Cast | Actor | Smithers |
Lionel Harris | Cast | Actor | Allan Mellon |
 Jacques Cey | Cast | Actor | Head Waiter |
Robert Moore | Cast | Minor Role (uncredited) | |
James Ure | Cast | Airline Reservations Clerk (uncredited) | |
| Person | Type | Job | Role(s) |
