James Coburn
Dr. Sidney Schaefer
Godfrey Cambridge
Don Masters
Pat Harrington, Jr.
Arlington Hewes
Barry McGuire
Old Wrangler
Eduard Franz
Ethan Allen Cocket
William Daniels
Wynn Quantrill
Joan Darling
Jeff Quantrill
Sheldon Collins
Bing Quantrill
Martin Horsey
1st Puddlian
William Beckley
2nd Puddlian
Kathleen Hughes
White House Tourist
Walt Davis
Phoneman (uncredited)
John Gunn
FBR Agent (uncredited)
Pitt Herbert
White House Tour Guide (uncredited)
Soon-Tek Oh
Chinese Agent (uncredited)
Dyanne Thorne
Cocktail Waitress (uncredited)
Hank Worden
Dirty Old Man (uncredited)
Stephen Young
Man in Suit Killed in the Beginning (uncredited)