Dick Van Dyke
Role: Rev. Clayton Brooks
Pippa Scott
Role: Natalie Brooks
Tom Poston
Role: Mr. Stopworth
Edward Everett Horton
Role: Hiram C. Grayson
Bob Elliott
Role: Hugh Upson / David Chetley / Sandy Van Andy
Vincent Gardenia
Role: Mayor Wappler
Barnard Hughes
Role: Dr. Proctor
Graham Jarvis
Role: Amos Bush
Jean Stapleton
Role: Mrs. Wappler
Paul Benedict
Role: Zen Buddhist
Judith Lowry
Role: Odie Turman
Bob Newhart
Role: Merwin Wren
Hubert H. Humphrey
Role: Self (archive footage)
Pat Nixon
Role: Self (archive footage)
Richard Nixon
Role: Self (archive footage)
Ronald Reagan
Role: Self (archive footage)
Spiro Agnew
Role: Self (archive footage)
Barbara Cason
Role: Letitia Hornsby
Helen Page Camp
Role: Mrs. Watson
Simon Scott
Role: Mr. Kandiss
Raymond Kark
Role: Homer Watson
Peggy Rea
Role: Mrs. Proctor
Woodrow Parfrey
Role: Tobacco Executive
George Mann
Role: Bishop Manley
Charles Pinney
Role: Col. Galloway
Gloria LeRoy
Role: The Hooker
Jack Grimes
Role: TV Stage Manager
Walter Sande
Role: Tobacco Executive
Harvey Jason
Role: Hypnotist
Robert Christopher
Role: Television Director (uncredited)
Murray Cline
Role: Milkman (uncredited)
Michael Cornelison
Role: Protester (uncredited)
Stan Gottlieb
Role: Man on Operating Table (uncredited)
Ray Goulding
Role: Walter Chronic / Paul Hardly / Arthur Lordly (uncredited)
Lynn Guthrie
Role: Townsman (uncredited)
Hubert H. Humphrey
Role: Self (archive footage) (uncredited)
Ted Knight
Role: Mr. Slick (uncredited)
Norman Lear
Role: Crying Man (uncredited)
Maureen McCormick
Role: Talking Doll (voice) (uncredited)
Burt Prelutsky
Role: Tourist Asking for Directions (uncredited)
Mrs. Burt Prelutsky
Role: Tourist's Wife (uncredited)
Charles White
Role: Senator Sildge (uncredited)
Jerry Whittington
Role: Wilber Scott (uncredited)
Glenn Yarbrough
Role: Working Stiff (uncredited)
Louis Zorich
Role: Douglas Truesdale (uncredited)