Zero Mostel
Rev. Pious Blue
Kim Novak
Sister Lyda Kebanov (forger)
Clint Walker
Ranger Ben Quick
Claude Akins
Slade
Akim Tamiroff
Papa (Juan's father)
Larry Storch
Juan
John Anderson
Mayor Kincaid
Sam Jaffe
Brother Lilac Bailey (art forger)
Mako
Secret Agent Fong
Elisha Cook Jr.
Jeb
Ruth Warrick
Mrs. Applebee
John Fiedler
Brother Dismas Ostracorn - Explosives
John Larch
Sheriff of Friendly
Peter Whitney
Brother Jordan Cass - Tunneling
Norman Alden
The Great Gregory - Balloonist
Grady Sutton
Rev. Simms
Bill Zuckert
Ranger Commander (as William Zuckert)
Bob Steele
First Guard
Ben Aliza
Second Guard
Mickey Simpson
Third Guard
Byron Keith
Deputy
Kenny Endoso
Chinese Laundryman
Roy K. Ogata
Chinese Laundryman (as Roy Ogata)
George Sasaki
Chinese Laundryman
Yoneo Iguchi
Chinese Laundryman
Hiroshi Hissamuni
Chinese Laundryman
Crew
Hy Averback
Director
William Peter Blatty
Screenplay
Frank O'Rourke
Novel
Richard Freed
Producer
Malcolm Stuart
Producer
Nelson Riddle
Original Music Composer
Gene Milford
Editor
Jack Poplin
Production Designer
Moss Mabry
Costume Designer
Kenny Endoso
Stunts
Fred J. Koenekamp
Director of Photography
Hal Needham
Stunts
Loren Janes
Stunts
Bob Orrison
Stunts
Roy K. Ogata
Stunts
Miriam Nelson
Choreographer