""
Giorgio Albertazzi
as Philo Vance
Mico Cundari
as Chester Greene
Micaela Esdra
as Ada Greene
Anna Maria Gherardi
as Sibilla Greene
Elena Zareschi
as Mrs. Greene
Sergio Rossi
as Markham
Marco Tulli
as Sproot
Mario Avogadro
as Rex Greene
Silvio Anselmo
as Heath
Varo Soleri
as Currie
Nais Lago
as Ms. Hemming
Andrea Lala
as Dr. Von Bloon
Tino Bianchi
as Mr. Ross
Renata Bernardini
as Alice Barton
Gino Nelinti
as Mr. Snitkin
Marco Leto
Director
