Fabio Testi
Enrico Rosseni
Acting
Karin Baal
Herta Rosseni
Acting
Cristina Galbó
Elizabeth Seccles (as Christine Galbo)
Acting
Joachim Fuchsberger
Inspector Barth
Acting
Günther Stoll
Professor Bascombe
Acting
Claudia Butenuth
Brenda Pilchard
Acting
Camille Keaton
Solange Beauregard
Acting
Maria Monti
Mrs. Erickson
Acting
Giancarlo Badessi
Mr. Erickson
Acting
Pilar Castel
Janet Bryant
Acting
Giovanna Di Bernardo
Helen Edmonds
Acting
Vittorio Fanfoni
Enrico's Landlord
Acting
Marco Mariani
Father Webber
Acting
Antonio Casale
Mr. Newton (as Antony Vernon)
Acting
Emilia Wolkowicz
Ruth Holden (as Emilia Wolkowich)
Acting
Daniele Micheletti
Mr. Bryant
Acting
Antonio Anelli
Father Herbert
Acting
Rainer Penkert
Mr. Leach, the Headmaster
Acting
Carla Mancini
Susan, a Student
Acting
Joe D'Amato
CID Officer w / The Daily Telegraph (uncredited)
Directing
John Gayford
Joseph Kane (uncredited)
Acting
Alfonso Giganti
Man at Church (uncredited)
Acting
Charles Howerton
Phillip Sullivan (voice) (uncredited)
Acting
Maria Michi
Brenda's Mother (uncredited)
Acting
Alfred Vohrer
Edgar Wallace (voice) (archive footage) (uncredited)
Directing
Joe Wadham
Policeman (uncredited)
Acting
Augusta Di Vincenzi
Woman in church (uncredited)
Acting
Rory MacDonald
Phillip Sullivan (uncredited)
Acting