Laurence Harvey
Lieutenant "Buster" Crabb, R.N.V.R.
During WW2, Italian Navy divers use underwater chariots to mine the keels of British warships, forcing the British to send underwater demolition expert Lionel Crabbe and his team to counter these enemy actions.
Lieutenant "Buster" Crabb, R.N.V.R.
Leading Seaman Knowles
Third Officer Jill Masters, W.R.N.S
The Admiral
Chief Petty Officer Thorpe
Able Seaman Morgan
Able Seaman Fraser
Ordinary Seaman Thomas
Tomolino
Conchita
Forzenelli
Rosati
Fellini
Celloni
Sergeant
Willowdale Captain
Holford
Wing Commander
Miguel
Miguel's Mate
Director
