Zero Mostel as Rev. Pious Blue

Kim Novak as Sister Lyda Kebanov (forger)

Clint Walker as Ranger Ben Quick

Claude Akins as Slade

Akim Tamiroff as Papa (Juan's father)

Larry Storch as Juan

John Anderson as Mayor Kincaid

Sam Jaffe as Brother Lilac Bailey (art forger)

Mako as Secret Agent Fong

Elisha Cook Jr. as Jeb

Ruth Warrick as Mrs. Applebee

John Fiedler as Brother Dismas Ostracorn - Explosives

John Larch as Sheriff of Friendly

Peter Whitney as Brother Jordan Cass - Tunneling

Norman Alden as The Great Gregory - Balloonist

Grady Sutton as Rev. Simms

Bill Zuckert as Ranger Commander (as William Zuckert)

Bob Steele as First Guard

Ben Aliza as Second Guard

Mickey Simpson as Third Guard

Byron Keith as Deputy

Kenny Endoso as Chinese Laundryman

Roy K. Ogata as Chinese Laundryman (as Roy Ogata)

George Sasaki as Chinese Laundryman

Yoneo Iguchi as Chinese Laundryman

Hiroshi Hissamuni as Chinese Laundryman