Donald O'Brien

as Pietro d'Assisi

as Schwartz

as SS Officer

as Wallace Bennett

as Plotting German Officer (uncredited)

as Dr. Obrero / Dr. Butcher

as Caldwell

as L'officier anglais

as Justice Jonathan Ford

as Donald McKenzie

as Valkos

as Sheriff of Salt Flat

as Professor Olster

as Monk

as Daniel Cassidy

as American Officer

as Gallery visitor

as Burt Craven

as Exorcist

as Liverpool

as Flertcher

as Sgt. Stricker

as Black One

as Caroll

as Inspector

as Archibald Williams

as Rico

as Gunther

as General

as American Tourist (segment "Ella") (uncredited)

as Professor Riccardo Rossi

as Barone

as Mr. Slider

as Lester O'Hara

as Self

as Bernardino, hermit

as Roman Soldier

as Captain Ned Carter

as Mafia Thug

as Lee Rast

as Jack Forest

as Major Hagerty

as Frank

as Outlaw

as Collins

as Self

as Burt Jones

as Frank

as Polard

as Dolbry