Directed by Lamberto Bava
Produced by Dario Argento
Executive Producer : Ferdinando Caputo
Written by Dario Argento, Lamberto Bava, Franco Ferrini, Dardano Sacchetti
Cinematography by Gianlorenzo Battaglia
Film Editing by Piero Bozza
Music by Simon Boswell, Dead Can Dance
Casting by Roberto Palmerini
Art Direction by Davide Bassan
Costume Design by Nicola Trussardi
Special Makeup Effects : Rosario Prestopino
Mechanical and Transformation Effects : Sergio Stivaletti
Special Effects : Corridori & Co.
Cast
David Edwin Knight (George)
Nancy Brilli (Hannah)
Coralina Cataldi Tassoni (Sally Day)
Bobby Rhodes (Hank, gym instructor)
Asia Argento (Ingrid Haller)
Virginia Bryant (Mary the Prostitute)
Anita Bartolucci (Woman with Dog)
Antonio Cantafora (Ingrid's Father)
Luisa Passega (Helga Haller, Ingrid's mother)
Davide Marotta (Tommy the Child Demon)
Marco Vivio (Tommy)
Michele Mirabella (Hooker's Client)
Lorenzo Gioielli (Jake)
Pasqualino Salemme (Security Guard)
Maria Chiara Sasso (Ulla, partygoer with camera)
Dario Casalini (Teddy, Ulla's boyfriend)
Andrea Garinei (Partygoer waiting for Jacob)
Luca De Nardo (Partygoer)
Angela Frondaroli (Susan, bodybuilder)
Caroline Christina Lund (Jennifer, bodybuilder)
Karen Gennaro (Bodybuilder)
Marina Loi (Kate)
Silvia Rosa (Partygoer/Demon)
Monica Umena (Partygoer)
Lorenzo Flaherty (Partygoer)
Fabio Poggiali (Muller, Bodybuilder)
Andrea Spera (Partygoer)
Yvonne Fraschetti (Jacob's Girl)
Bruno Bilotta (Jacob)
Furio Bilotta (Man in back of Jacob's car)
Giovanna Pini (Girl in back of Jacob's car/Woman in Garage)
Stefano Molinari (Demon on TV)
Pasquele Valente (Tommy's Father)
Kim Rhone (Tommy's Mother)
Annalie Harrison (Sally's Mother)