Leslie Phillips as Doctor Anthony Burke

Harry Secombe as Llewellyn Wendover

Robert Morley as Captain George Spratt

James Robertson Justice as Sir Lancelot Spratt

Angela Scoular as Ophelia O'Brien

Irene Handl as Mrs Dailey

Simon Dee as Basil Beauchamp

Freddie Jones as Master at Arms

Joan Sims as Russian Captain

John Le Mesurier as Purser

Graham Stark as Satterjee

Graham Chapman as Roddy

Janet Mahoney as Dawn Dailey

Jacki Piper as Cockney Girl

Marianne Stone as Spinster

John Bluthal as Cabbie

Fred Emney as Father

Gerald Sim as Doctor

Anthony Sharp as Surgeon

Marcia Fox as Jean

Luan Peters as Doctor Dare Fan

Yuri Borienko as Sick Russian

Yutte Stensgaard as Eve

Jimmy Thompson as Ship's Doctor

Sylvana Henriques as Model

Tom Kempinski as Stedman Green

Anthony Sharp as Chief Surgeon