Sammy Davis Jr. as Charles Salt

Peter Lawford as Christopher Pepper

Michael Bates as Inspector Crabbe

Ilona Rodgers as Marianne Renaud

John Le Mesurier as Col. Woodstock

Graham Stark as Sgt. Walters

Ernest Clark as Col. Balsom

Jeanne Roland as Mai Ling

Robert Dorning as Club Secretary

Robertson Hare as Dove

Geoffrey Lumsden as Foreign Secretary

William Mervyn as Prime Minister

Llewellyn Rees as "Fake" Prime Minister

Mark Singleton as "Fake" Home Secretary

Michael Trubshawe as "Fake" First Lord

Francesca Tu as Tsai Chan

Oliver MacGreevy as Rack

Peter Hutchins as Straw

Jeremy Lloyd as Lord Ponsonby

Sean Lynch as Black Jack Player

Ivor Dean as Police Commissioner

Brian Harrison as 1st. Policeman

Harry Hutchinson as Manservant

Max Faulkner as Lieutenant

Beth Rogan as Greta

Rifat Shenel as Mario

Calvin Lockhart as Jones

Nicholas Smith as Constable

Susan Blair as Janice

Christine Pockett as Jill

Cassandra Mowan as Jean

Joe Wadham as Colonel Woodstock's Aide