Warren Beatty (Joe Frady), William H. Daniels (Austin Tucker), Paula Prentiss (Lee Carter), Hume Cronyn (Edgar Rintels), Bill McKinney (Art), Walter McGinn (Jack Younger), Kelly Thordsen (L. D.), Chuck Waters (Thomas Richard Linder), Kenneth Mars (l'agent Turner), Jim Davis (Senator Hammond), Earl Hindman (Deputy Red), Bill Joyce (le sénateur Carroll), William Joyce (Senator Charles Carroll), Anthony Zerbe (Prof. Nelson Schwartzkopf), Edward Winter (senator Jameson), Bettie Johnson (Mrs. Charles Carroll), Doria Cook-Nelson (Gale - Blond Salmontail Bar Girl), Jo Ann Harris (Chrissy), Betty Murray (Mrs. Charles Carroll), William Jordan (Tucker's Aide), Ted Gehring (Schecter - Hotel Clerk), Lee Pulford (Shirley - Brunet Salmontail Bar Girl), Alma Beltran (Joy Holder), Sr. Stacy Keach (Commission Spokesman #1), Ford Rainey (Commission Spokesman #2), Richard Bull (Parallax Goon), Joan Lemmo (Organist)