Charlie Chaplin as King Shahdov

Maxine Audley as Queen Irene

Jerry Desmonde as Prime Minister Voudel

Oliver Johnston as Ambassador Jaume

Dawn Addams as Ann Kay - TV Specialist

Sid James as Johnson - TV Advertiser

Joan Ingram as Mona Cromwell - Hostess

Michael Chaplin as Rupert Macabee

John McLaren as Macabee Senior

Phil Brown as Headmaster

Harry Green as Lawyer

Robert Arden as Liftboy

Alan Gifford as School Superintendent

Robert Cawdron as U.S. Marshal

George Woodbridge as Member of Atomic Commission

Clifford Buckton as Member of Atomic Commission

Vincent Lawson as Member of Atomic Commission

Shani Wallis as Singer

Joy Nichols as Singer

Lauri Lupino Lane as Comedian

George Truzzi as Comedian

Yvonne Romain as Older Girl

Tony Crombie as Nightclub Drummer (uncredited)

Pat Gibson as Girl (uncredited)

Anne Gilleno as Nurse (uncredited)

Wendy Graham as (uncredited)

Lilian Grassom as Cute Girl (uncredited)

Arthur Gross as Autograph Hunter (uncredited)

Tubby Hayes as Nightclub Saxophonist (uncredited)

Frazer Hines as Boy (uncredited)

Roy Hines as Boy (uncredited)

Penelope Horner as Girl (uncredited)

Jemma Hyde as Girl (uncredited)

Jeanette Jacobs as Girl (uncredited)

Pauline Keen as Older Girl (uncredited)

Kevin Kelly as Boy (uncredited)

Hugh McDermott as Bill Johnson (uncredited)

Bill Nagy as Television Announcer (uncredited)

MacDonald Parke as (uncredited)

Jose Read as Boy (uncredited)

Michael Saunders as Boy (uncredited)

Antoinette Seaborn as Girl (uncredited)

Richard Shaw as Butler (uncredited)

Bernice Swanson as (uncredited)

Gareth Tandy as Boy (uncredited)

Nicholas Tannar as Butler (uncredited)

David Tilley as Boy (uncredited)

Howard Vaughn as Boy (uncredited)

Gillian Watt as Teenager (uncredited)

Robin Wheeler as Cooking Student (uncredited)

Ross Yeo as Boy (uncredited)