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

Mickey Simpson

Third Guard

Byron Keith

Deputy