James Coburn
Dr. Sidney Schaefer
Godfrey Cambridge
Don Masters
Severn Darden
Kropotkin
Joan Delaney
Nan Butler
Pat Harrington, Jr.
Arlington Hewes
Barry McGuire
Old Wrangler
Jill Banner
Snow White
Eduard Franz
Ethan Allen Cocket
Walter Burke
Henry Lux
Will Geer
Dr. Lee-Evan
William Daniels
Wynn Quantrill
Joan Darling
Jeff Quantrill
Sheldon Collins
Bing Quantrill
Arte Johnson
Sullivan
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)
Hank Worden
Dirty Old Man (uncredited)
Stephen Young
Man in Suit Killed in the Beginning (uncredited)