Rod Taylor
Bruce Templeton
Arthur Godfrey
Axel Nordstrom
John McGiver
Ralph Goodwin
Edward Andrews
Gen. Wallace Bleecker
Dom DeLuise
Julius Pritter
Elisabeth Fraser
Nina Bailey
Alice Pearce
Mabel Fenimore
George Tobias
Norman Fenimore
Robert Vaughn
Napoleon Solo (uncredited)
Carolyn Williamson
Party girl
Rachel Romen
Reporter (uncredited)
George Carlin
Unknown (uncredited)
George Cisar
Fat Man (uncredited)
John Dennis
Policeman (uncredited)
Florence Halop
Lady on Telephone (uncredited)
Frank Parker
Engineer (uncredited)
Christopher Riordan
Party Guest / Computer Plant Worker (uncredited)
Tom Anfinsen
Party Guest (uncredited)
Spencer Chan
Chef (uncredited)
George Ford
Party Guest (uncredited)
James Gonzalez
Party Guest (uncredited)
Theo Marcuse
Gregor - Spy with Cigar (uncredited)
Hans Moebus
Party Guest (uncredited)
Joe Ploski
Husband (uncredited)
Murray Pollack
Party Guest (uncredited)
Bernard Sell
Party Guest (uncredited)