| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alberto De Martino | Crew | Directing | Director, Writer |
 Alfredo Nicolai | Crew | Production | Production Manager |
 Bruno Nicolai | Crew | Sound | Music |
Edmondo Amati | Crew | Production | Producer |
 Ennio Morricone | Crew | Sound | Music |
 Gianfranco Clerici | Crew | Writing | Writer |
Giorgio Gentili | Crew | Directing | Assistant Director |
 Joe D'Amato | Crew | Camera | Director of Photography |
Joe Pollini | Crew | Directing | Assistant Director |
 Uberto Bertacca | Crew | Costume & Make-Up | Costume Design, Art Direction |
Vincenzo Tomassi | Crew | Editing | Editor |
Euclide Santoli | Crew | Crew | Special Effects, Makeup Artist |
Vincenzo Mannino | Crew | Writing | Writer |
Fausto Ancillai | Crew | Sound | Sound Mixer |
Michele Germano | Crew | Production | Production Supervisor |
Roberto Petrozzi | Crew | Sound | Sound |
Klaus D. Pätzold | Crew | Production | Production Manager |
 Alida Valli | Cast | Actress | Irene |
 Arthur Kennedy | Cast | Actor | Bishop Ascanio Oderisi |
Bruno Tocci | Cast | Possessed Man's Friend | |
 Carla Gravina | Cast | Actress | Ippolita Oderisi |
 Dhia Cristiani | Cast | Actress | voice dubbing: Alida Valli (uncredited) |
 Ernesto Colli | Cast | Actor | Possessed Man |
 George Coulouris | Cast | Actor | Father Mittner |
John Francis Lane | Cast | Party guest | |
 Mario Scaccia | Cast | Actor | Faith Healer |
 Mel Ferrer | Cast | Actor | Massimo Oderisi |
 Remo Girone | Cast | Actor | Filippo Oderisi |
 Umberto Orsini | Cast | Actor | Dr. Marcello Sinibaldi |
 Anita Strindberg | Cast | Actress | Greta |
 Milla Johansson | Cast | Actress | Party guest (uncredited) |
Beatrice De Bono | Cast | Woman healed by statue | |
| Person | Type | Job | Role(s) |
