Kenneth Williams

Captain Fearless

Bernard Cribbins

Midshipman Albert Poop-Decker

Juliet Mills

Sally

Charles Hawtrey

Walter Sweetley

Donald Houston

Lieutenant Jonathan Howett

Percy Herbert

Mr. Angel

Jim Dale

Young Carrier

Patrick Cargill

Governor Don Luis

Cecil Parker

First Sea Lord

Ed Devereaux

Hook

Peter Gilmore

Roger

George Woodbridge

Ned

Ian Wilson

Lightning Legs

Anton Rodgers

Vice-Admiral Sir Thomas Hardy

Michael Nightingale

Town Crier

Frank Forsyth

Second Sea Lord

Barrie Gosney

Coach Driver

Viviane Ventura

Spanish Secretary

Marianne Stone

Peg

Jim Brady

Pirate (uncredited)

Pat Gorman

Pirate (uncredited)

Guy Standeven

Pirate (uncredited)