- Van Johnson
- Father John
- Paul Douglas
- Joe Brewster
- Joseph Calleia
- Aggiunto Bodulli
- Carlo Rizzo
- Antonio Silesto
- Tudor Owen
- Father McGinniss
- Dino Nardi
- Commissario Genoa
- Aldo Silvani
- Cabby
- Mario Siletti
- Luigi Lugacetti
- Argentina Brunetti
- Mrs. Lugacetti
- Mimi Aguglia
- Rosa
- Emory Parnell
- Ship's Captain
- Charles Fawcett
- Mr. Cates
- Alberto Lolli
- Father Segatini
- Adriano Ambrogi
- Father Mariani
- Amina Pirani Maggi
- Dove
- Carlo Borelli
- Monsignor
- Giuseppe Pierozzi
- Baker
- Guido Martufi
- Urchin
- Joseph Falletta
- Cab Driver
- Paul Frees
- Commisario Genoa
- Armando Annuale
- Little Priest
- William Bailey
- Ship Passenger
- Margaret Bert
- Ship Passenger
- Lela Bliss
- Mrs. Wigland
- Nino Cavalieri
- Scottish Priest
- Giovanni Dolfini
- Pizzi
- Al Ferguson
- Miner
- Enzo Fiermonte
- Harbor Policeman
- Elizabeth Flournoy
- Confessional Lady in Black Veil
- David Fresco
- Prisoner in Italian Jail
- Tim Graham
- Reporter
- Richard Hale
- Professor Homer Sandway
- Enzo Hassan
- Priest
- Harry Hayden
- Mr. Wigland - the Girdle Salesman
- André Hildebrand
- Young Bearded Monk
- Frank Hyers
- Steward
- Thomas Martin
- Ship's Waiter
- Carlo Mazzoni
- Old White-Bearded Monk
- Ernesto Molinari
- Vice Commissario
- Sandro Mondini
- Priest
- Piero Pastore
- Customs Man
- Diego Pozzetto
- Bearded Priest
- Bill Raisch
- Prisoner in Italian Jail
- Alice Richey
- Townswoman
- Alessandro Serbaroli
- Carbinieri
- Allan Sharp
- Father Moore
- Jack Stoney
- Miner
- Tsao Hong Tche
- Chinese Priest
- Renata Vanni
- Mrs. Maroni
- Glen Walters
- Townswoman
