Richard Harris
Lt. Cmdr. Anthony Fallon

Omar Sharif
Captain Alex Brunel

David Hemmings
Charlie Braddock

Anthony Hopkins
Supt. John McCleod

Shirley Knight
Barbara Banister

Ian Holm
Nicholas Porter

Clifton James
Corrigan

Roy Kinnear
Social Director Curtain

Caroline Mortimer
Susan McCleod

Mark Burns
Hollingworth

John Stride
Hughes

Freddie Jones
Sidney Buckland

Julian Glover
Cmdr. Marder

Jack Watson
Chief Engineer Malicent

Roshan Seth
Azad

Kenneth Colley
Detective Brown

Andy Bradford
3rd Officer Jim Hardy

John Bindon
Driscoll

Tom Chadbon
Juggernaut's Contact

Kenneth Cope
Bridgeman

Freddie Fletcher
2nd Radio Officer

Simon MacCorkindale
No. 1 Helmsman

Richard Moore
Junior Officer

Doris Nolan
Mrs. Corrigan

Liza Ross
Laura Kellogg

Howard Southern
Detective Skinner

Gareth Thomas
Liverpool Joiner

Cyril Cusack
Major O'Neill

Michael Hordern
Mr. Baker