- Marianne Stone
- Travel Girl
- Lionel Murton
- American Traveller
- Lisa Gastoni
- Receptionist
- Margaret Rutherford
- Miss Cynthia Beeston
- Belinda Lee
- Janie Grey
- George Coulouris
- Ernest Schroeder
- Toke Townley
- Henry Waterman
- Michael Gwynn
- First Transport Officer
- Stringer Davis
- Second Transport Officer
- Richard Beynon
- Third Transport Officer
- Anthony Oliver
- Duty Officer
- Petula Clark
- Lee Nicholls
- Frankie Howerd
- Percy Lamb
- Sam Kydd
- Security Officer
- Reginald Beckwith
- Telephone Man
- Terence Alexander
- Peter Jones
- Cyril Conway
- First Crook
- Arthur Lovegrove
- Second Crook
- John Horsley
- Detective Inspector Henley
- Alastair Hunter
- Detective
- Tedwell Chapman
- Second American Traveler
- Norma Dale
- Undetermined Secondary Role
- Richard Duke
- Passenger in Airport Terminal
- William Franklyn
- Crook in Opening Sequence
- Charles Hammond
- Passenger at Airport Terminal
- Richard Neller
- Father at Airport Terminal
- Fred Nicholas
- Policeman at Airport Terminal
- Frank Phillips
- BBC Newscaster
- Pat Symons
- Passenger at Airport Terminal
- Jimmy Young
- Undetermined Secondary Role
