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