Onder andere met: Peter Sellers (Chance - Chauncey Gardiner), Shirley MacLaine (Eve Rand), Melvyn Douglas (Benjamin Turnbull Rand), Jack Warden (President `Bobby`), Richard A. Dysart (Dr. Robert Allenby (as Richard Dysart)), Richard Basehart (Vladimir Skrapinov), Ruth Attaway (Louise), David Clennon (Thomas Franklin), Fran Brill (Sally Hayes), Denise DuBarry (Johanna, girl with Franklin), Oteil Burbridge (Lolo), Ravenell Keller III (Abraz), Brian Corrigan (Policeman outside White House), Alfredine P. Brown (Old Woman (as Alfredine Brown)), Donald Jacob (David),