- Richard Harris
- Lt. Cmdr. Anthony Fallon
- Omar Sharif
- Captain Alex Brunel
- David Hemmings
- Charlie Braddock
- Anthony Hopkins
- Supt. John McCleod
- Shirley Knight
- Barbara Bannister
- Ian Holm
- Nicholas Porter
- Clifton James
- Corrigan
- Roy Kinnear
- Social Director Curtain
- Caroline Mortimer
- Susan McCleod
- Mark Burns
- Hollingsworth
- John Stride
- Hughes
- Freddie Jones
- Sidney Buckland
- Julian Glover
- Cmdr. Geoff Marder
- Jack Watson
- Chief Engineer Mallicent
- Roshan Seth
- Azad
- Kenneth Colley
- Detective Brown
- Andy Bradford
- 3rd Officer Jim Hardy
- Paul Antrim
- Digby
- Ben Aris
- The Walker
- John Bindon
- Driscoll
- Adam Bridge
- David McCleod
- Rebecca Bridge
- Nancy McCleod
- Tom Chadbon
- Juggernaut's Contact
- Kenneth Cope
- Bridgeman
- Michael Egan
- Mr. Fowlers
- Freddie Fletcher
- 2nd Radio Officer
- Terence Hillyer
- Menzies
- Barnaby Holm
- Christopher Porter
- Kristine Howarth
- Mrs. Buckland
- Victor Lucas
- Detective
- Paul Luty
- Clerk
- Simon MacCorkindale
- No.1 Helmsman
- Eric Mason
- 2nd Detective
- Michael Melia
- Navigator
- Richard Moore
- Junior Officer
- Rosamund Nelson
- Clerk at the Air Terminal
- Doris Nolan
- Mrs. Corrigan
- John Pennington
- Passenger
- David Purcell
- 1st Detective
- Martyn Read
- Kelsey
- Liza Ross
- Laura Kellogg
- Bob Sessions
- Jerry Kellogg
- Howard Southern
- Detective Skinner
- Ian Talbot
- Naval Technician
- Colin Thatcher
- Henning
- Gareth Thomas
- Liverpool Joiner
- Jerry Baker
- Police Constable
- Cyril Cusack
- Major O'Neill
- Charlie Gray
- Crew Member
- Lew Hooper
- Inspector
- Michael Hordern
- Mr. Baker
- Eric Kent
- Policeman
- Steven Longhurst
- Man
- Kevin Moran
- Police Constable
- Stuart Myers
- Police Constable
- Louie Ramsay
- Character
- Peter Roy
- Police Constable
- Byron Sotiris
- Policeman
- Barry Summerford
- Steward
- Reg Thomason
- Sailor
- Norman Warwick
- (uncredited)
