Robert Conrad
Role: Jim West
Ross Martin
Role: Artemus Gordon
Jonathan Winters
Role: Prof. Albert Paradine II
Harry Morgan
Role: Robert T. 'Skinny' Malone
René Auberjonois
Role: Capt. Sir David Edney
Victor Buono
Role: Dr. Henry Messenger
Emma Samms
Role: Mirabelle Merriwether
Joyce Brothers
Role: The Bystander
Jack LaLanne
Role: Physical Fitness Trainer
James Bacon
Role: The Wheelman
Sandy Helberg
Role: Aide #1
Richard Hawk
Role: Aide #2
Joe Alfasa
Role: Italian Ambassador
Gino Conforti
Role: French Ambassador
Hector Elias
Role: Spanish Ambassador
Dave Madden
Role: German Ambassador
Avery Schreiber
Role: Russian Ambassador
John Furlong
Role: Bavarian Delegate
Rex Pearson
Role: 2nd Hulk
David S. Cass Sr.
Role: Juanita's Brother
Tony Epper
Role: Juanita's Brother
Casey Tibbs
Role: Juanita's Brother
Edward Jenson
Role: Secret Service Man
Cosmo Sardo
Role: Dealer (uncredited)