Cast
Osmund Bullock
Lt. Colin Beale
Frederick Treves
Admiral Jack Tovey
John Horsley
Admiral Nicholas
Blain Fairman
Lt. Cmdr. Hollerith
Richard Briers
Jack Broome
Paul Copley
PO Jordan
Roger Milner
Admiral Naismith
Tony Caunter
Coxswain
Rowena Cooper
Sybil Broome
Sylvester Morand
Commander Richards
Patrick Troughton
Commodore Londonderry
Christopher Villiers
Sub-Lt. Larkin