Barbara Steele

Cynthia Hichcock

Robert Flemyng

Prof. Bernard Hichcock

Silvano Tranquilli

Dr. Kurt Lowe

Maria Teresa Vianello

Margherita Hichcock

Harriet Medin

Martha, the maid

Spencer Williams

Al Christianson

Evaristo Signorini

Inspector Scott

Giovanni Querrel

Neil Robinson

Howard Nelson Rubien