| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bernard Gordon | Crew | Writing | Screenplay |
Bert Ross | Crew | Sound | Sound Recordist |
Cedric Dawe | Crew | Art | Art Direction |
Eileen Warwick | Crew | Costume & Make-Up | Hairstylist |
 Freddie Francis | Crew | Directing | Director |
George Pitcher | Crew | Production | Producer |
John Wyndham | Crew | Writing | Novel |
Paul Rabiger | Crew | Costume & Make-Up | Makeup Artist |
 Philip Yordan | Crew | Production | Executive Producer |
Ron Goodwin | Crew | Sound | Original Music Composer |
 Steve Sekely | Crew | Directing | Director |
Ted Moore | Crew | Camera | Director of Photography |
Wally Veevers | Crew | Visual Effects | Visual Effects |
Maurice Askew | Crew | Sound | Sound Recordist |
John Winbolt | Crew | Camera | Camera Operator |
John Shinerock | Crew | Camera | Focus Puller |
Hugh Davey | Crew | Camera | Focus Puller |
 Alison Leggatt | Cast | Actress | Miss Coker |
Arthur Gross | Cast | Actor | Flight 356 Radioman |
 Carole Ann Ford | Cast | Actress | Bettina |
Colette Wilde | Cast | Actress | Nurse Jamieson |
 Ewan Roberts | Cast | Actor | Dr. Soames |
 Fred Wood | Cast | Actor | Train Passenger (uncredited) |
Geoffrey Matthews | Cast | Luis de la Vega | |
Gilgi Hauser | Cast | Teresa de la Vega | |
 Howard Keel | Cast | Actor | Bill Masen |
 Ian Wilson | Cast | Actor | Greenhouse Watchman |
 Janette Scott | Cast | Actress | Karen Goodwin |
 Janina Faye | Cast | Actress | Susan - Child on the Train |
 Jim Brady | Cast | Actor | Escaped Prisoner (uncredited) |
 Juba Kennerley | Cast | Actor | Airline Passenger (uncredited) |
 Katya Douglas | Cast | Actress | Mary (uncredited) |
 Kieron Moore | Cast | Actor | Tom Goodwin |
 Mervyn Johns | Cast | Actor | Mr. Coker |
Mick Dillon | Cast | Triffid (uncredited) | |
 Nicole Maurey | Cast | Actress | Christine Durrant |
 Peter Dyneley | Cast | Actor | Narrator / Parisian Radio Operator (voice) (uncredited) |
Sidney Vivian | Cast | Actor | Ticket Agent (uncredited) |
Thomas Gallagher | Cast | Actor | Burly Man (uncredited) |
 Victor Brooks | Cast | Actor | Poiret |
 Ernie Rice | Cast | Train Crash Survivor (uncredited) | |
George Hilsdon | Cast | Actor | Man in Train Station (uncredited) |
Chris Adcock | Cast | Train Passenger (uncredited) | |
Ernest Blyth | Cast | SS Midland Passenger (uncredited) | |
Joe Wadham | Cast | Actor | Train Passenger (uncredited) |
Mabel Etherington | Cast | Actress | Blind Woman (uncredited) |
Muriel Greenslade | Cast | SS Midland Passenger (uncredited) | |
Esme Smythe | Cast | Panicky Blonde on Flight 356 (uncredited) | |
Jimmy Charters | Cast | Blind Man at Station (uncredited) | |
Frederick Kelsey | Cast | Train Crash Survivor (uncredited) | |
Gerry Judge | Cast | Train Passenger (uncredited) | |
Harry Phipps | Cast | Man in Train Station (uncredited) | |
Johnny Rossi | Cast | Escaped Prisoner (uncredited) | |
John Tate | Cast | Actor | Captain - SS Midland |
Maxwell Craig | Cast | Escaped Prisoner (uncredited) | |
John Simpson | Cast | Blind Man (uncredited) | |
| Person | Type | Job | Role(s) |
