Jerry Lewis as Pete Mattemore

Connie Stevens as Eileen Forbes

Robert Morley as Harold Quonset

Dennis Weaver as Hoffman

Howard Morris as Schmidlap

Brian Keith as Gen. 'Howling Bull' Hallenby

Dick Shawn as Igor Valkleinokov

Anita Ekberg as Anna Soblova

Margaret Teele as Stella Mary

Sig Ruman as Russian Delegate

James Brolin as Ted Robertson

Linda Harrison as Peggy