Giorgio Albertazzi

Character: Philo Vance

Mico Cundari

Character: Chester Greene

Micaela Esdra

Character: Ada Greene

Anna Maria Gherardi

Character: Sibilla Greene

Elena Zareschi

Character: Mrs. Greene

Sergio Rossi

Character: Markham

Marco Tulli

Character: Sproot

Mario Avogadro

Character: Rex Greene

Silvio Anselmo

Character: Heath

Varo Soleri

Character: Currie

Nais Lago

Character: Ms. Hemming

Andrea Lala

Character: Dr. Von Bloon

Tino Bianchi

Character: Mr. Ross

Renata Bernardini

Character: Alice Barton

Gino Nelinti

Character: Mr. Snitkin