| Person | Type | Job | Role(s) |
|---|---|---|---|
 Albert Fennell | Crew | Production | Associate Producer |
Arthur Lawson | Crew | Art | Art Direction |
Brian Easdale | Crew | Sound | Original Music Composer, Music Director |
C. C. Stevens | Crew | Sound | Sound Recordist |
Derek V. Browne | Crew | Camera | Focus Puller |
Don Picton | Crew | Art | Set Dresser |
Gerry Turpin | Crew | Camera | Camera Operator |
Gordon K. McCallum | Crew | Sound | Sound Recordist, Sound Mixer, Sound Designer |
John Rushton | Crew | Editing | Assistant Editor |
Leo Marks | Crew | Writing | Screenplay, Original Story |
Malcolm Cooke | Crew | Sound | Sound Editor |
Maurice Pelling | Crew | Art | Draughtsman |
 Michael Powell | Crew | Directing | Director, Producer |
Nat Cohen | Crew | Crew | Presenter |
Noreen Ackland | Crew | Editing | Editor |
 Otto Heller | Crew | Camera | Director of Photography |
W.T. Partleton | Crew | Costume & Make-Up | Makeup Artist |
Pearl Orton | Crew | Costume & Make-Up | Hairstylist |
Rita Davison | Crew | Directing | Continuity |
Ivor Beddoes | Crew | Art | Assistant Art Director |
Denis Johnson Jr | Crew | Directing | Second Assistant Director |
Ted Sturgis | Crew | Directing | Assistant Director |
Jim Body | Crew | Camera | Focus Puller |
Stuart Levy | Crew | Crew | Presenter |
Tommy Linden | Crew | Crew | Choreographer |
Vic Smith | Crew | Lighting | Electrician |
Carl Mannin | Crew | Directing | Third Assistant Director |
Bill Paton | Crew | Production | Production Assistant |
Judith Coxhead | Crew | Production | Production Assistant |
Gordon Watson | Crew | Sound | Musician |
Alma Godfrey | Crew | Editing | Assistant Editor |
Norman Gryspeerdt | Crew | Camera | Still Photographer |
Ronnie Udell | Crew | Art | Construction Manager |
Alfred W. Marcus | Crew | Production | Production Manager |
Bill Burnside | Crew | Production | Publicist |
 Anna Massey | Cast | Actress | Helen Stephens |
 Bartlett Mullins | Cast | Actor | Mr. Peters - News Agent Shop Owner (uncredited) |
 Brenda Bruce | Cast | Actress | Dora |
 Brian Worth | Cast | Actor | Assistant Director (uncredited) |
 Cornelia Frances | Cast | Actress | Girl in Sports Car Leaving Studio (uncredited) |
 Esmond Knight | Cast | Actor | Arthur Baden |
Frank Singuineau | Cast | Actor | Electrician #1 (uncredited) |
Guy Kingsley Poynter | Cast | Actor | P. Tate - Studio Cameraman (uncredited) |
 Jack Watson | Cast | Actor | Chief Insp. Gregg |
John Dunbar | Cast | Actor | Police Doctor (uncredited) |
 Karlheinz Böhm | Cast | Actor | Mark Lewis |
 Keith Baxter | Cast | Actor | Det. Baxter (uncredited) |
 Martin Miller | Cast | Actor | Dr. Rosen |
 Maxine Audley | Cast | Actress | Mrs. Stephens |
 Michael Goodliffe | Cast | Actor | Don Jarvis |
Michael Powell | Cast | Actor | Mark's Father - A.N. Lewis (uncredited) |
 Miles Malleson | Cast | Actor | Elderly Gentleman Customer |
 Moira Shearer | Cast | Actress | Vivian |
 Nigel Davenport | Cast | Actor | Det. Sgt. Miller (uncredited) |
 Paddi Edwards | Cast | Actress | Girl Electrician (uncredited) |
 Pamela Green | Cast | Actress | Milly |
 Robert Crewdson | Cast | Actor | Shop Assistant on Film Set (uncredited) |
 Roland Curram | Cast | Actor | Young Man in Sports Car (uncredited) |
 Shirley Anne Field | Cast | Actress | Pauline Shields |
 Veronica Hurst | Cast | Actress | Miss Simpson - Jarvis' Secretary (uncredited) |
 Pete Murray | Cast | Young Man Embracing Girl (uncredited) | |
 Susan Travers | Cast | Actress | Lorraine the Model (uncredited) |
 John Barrard | Cast | Actor | Small Man (uncredited) |
Alan Rolfe | Cast | Store Detective (uncredited) | |
Maurice Durant | Cast | Publicity Chief (uncredited) | |
 Peggy Thorpe-Bates | Cast | Actress | Mrs. Partridge (uncredited) |
Frankie Reidy | Cast | Mark's Mother on Deathbed (uncredited) | |
Robert Vossler | Cast | Policeman (uncredited) | |
Columba Powell | Cast | Mark as a Child (uncredited) | |
Mme. Le Compte | Cast | Lover in Garden (uncredited) | |
M. Le Compte | Cast | Lover in Garden (uncredited) | |
Margaret Neale | Cast | Mark's Stepmother (uncredited) | |
Brian Wallace | Cast | Tony - Downstairs Lodger in Lewis' House (uncredited) | |
John Chappell | Cast | Clapper Boy (uncredited) | |
| Person | Type | Job | Role(s) |
