Charlie Drake as Charlie

Anne Heywood as Chief Oficer Anne Stevens

Cecil Parker as C-in-C

John Turner as Lt. Michael Pattinson

Thorley Walters as Captain Jerome Robertson

Maxine Audley as Mary - Superintendent

Aleta Morrison as Frog Girl

Murray Melvin as Kenneth

Anton Rodgers as Alec

Dilys Laye as Sue

Eleanor Summerfield as Chief Wren Mabel Rawlins

Victor Maddern as CPO Nixon

Lionel Murton as Admiral

Barbara Hicks as P.T. Instructress

Kenneth Fortescue as Paul Turner

Penny Newington as Elizabeth

Michael Ripper as Tug

Angus Lennie as George

Tony Hilton as Pincher

Norman Chappell as Johnson

James Milner as Chips

Diane Aubrey as Gunnery officer

Daphne Jonason as Navigation Officer

Diana Potter as Frog Girl