Kenneth Connor
— Ordinary Seaman Blissworth
Eric Barker
— Capt. David Foster
Leslie Phillips
— Lt. Cmdr. Bill Fanshawe
Joan Sims
— Ann Foster
Noel Purcell
— Adm. Sir Humphrey Pettigrew
Hattie Jacques
— Agatha Potter
Spike Milligan
— Ranjid - Civilian electrician #1
Eric Sykes
— Civilian electrician #2
Sidney James
— Chief Petty Officer Mundy
David Lodge
— Security sergeant
Victor Maddern
— Sailor fishing for bike
Ed Devereaux
— Cmdr. Phillips
Robin Ray
— Flag lieutenant
George Street
— Second Security Guard
Peter Howell
— Admiral's secretary
Peter Byrne
— Sailor
Arch Taylor
— Coxswain
Michael Brennan
— Security Guard
Leila Williams
— WREN Driver
Richard Bennett
— Officer of the Day
Carl Conway
— Sailor
Rory MacDermot
— Security Guard
Jack Smethurst
— Sailor
Dickie Owen
— Sailor
Bill Cartwright
— Sailor
Ivor Danvers
— Sailor
Charles Vance
— Sailor
Michael Nightingale
— Sailor
Eric Corrie
— Engineering Officer