Characters played by Paul Naschy
Father Adrian Dunning
Characters played by Maria Perschy
Patricia Gibson
Characters played by María Kosty
Deborah Gibson
Characters played by Mercedes Molina
Leila Gibson
Characters played by Jordi Torras
Dr. Lewton Buchanan
Characters played by Luis Induni
Udo
Characters played by Roger Leveder
Richard Harrington
Characters played by Joan Llaneras
John Gibson
Characters played by Marta Avilés
Sandra
Characters played by Juan Velilla
Comisario
Characters played by Florencio Calpe
Christian
Characters played by Dora Santacreu
Abigail
Characters played by Gero
Bork - The Dog
Characters played by Esteban Dalmases
Policía
Characters played by Jack Taylor
Father Adrian Dunning