Anthony Steffen

~ as ~

Dr. Guido Malerva

Margaret Lee

~ as ~

Eliana

Luigi Pistilli

~ as ~

Commissario Di Stefano

Gianni Dei

~ as ~

Franco

Giuseppe Castellano

~ as ~

Mario

Livia Cerini

~ as ~

Mara Malerva

Sandro Pizzochero

~ as ~

Eddie

Giovanni Brusatori

~ as ~

Vicecommissario

Giancarlo Busi

~ as ~

Polizziotto alla villa

Marino Campanaro

~ as ~