Cast
Laurence Harvey
Lieutenant "Buster" Crabb, R.N.V.R.
Dawn Addams
Third Officer Jill Masters, W.R.N.S
Massimo Serato
Forzenelli
Giacomo Rossi Stuart
Rosati
Ewen Solon
Willowdale Captain
Ian MacNaughton
Admiralty Sentry
John Clements
The Admiral
Sidney James
Chief Petty Officer Thorpe
Arnoldo Foà
Tomolino
Terence Longdon
Lt Bailey
Carlo Giustini
Fellini
David Lodge
Sergeant
Cyril Shaps
Miguel
Derren Nesbitt
Patrol Boat Officer
Jerome Willis
Sailor
Alec McCowen
Able Seaman Morgan
Nigel Stock
Able Seaman Fraser
Raymond Young
Celloni
Howard Marion-Crawford
Wing Commander
Lee Montague
Miguel's Mate
Alan Webb
British Consul
Gianna Maria Canale
Conchita
Brian Oulton
Holford
Yvonne Romain
Spanish Girl
Michael Craig
Leading Seaman Knowles
Jack May
Navy Doctor