The Girl Who Knew Too Much

John Saxon

Dr. Marcello Bassi

Letícia Román

Nora Davis

Valentina Cortese

Laura Craven-Torrani

Dante DiPaolo

Andrea Landini

Titti Tomaino

Inspector

Luigi Bonos

Albergo Stelletta

Milo Quesada

De Vico / Paccini

Gustavo De Nardo

Dr. Facchetti

Giovanni Di Benedetto

Professor Torrani

Jim Dolen

Priest (uncredited)

Franco Ressel

Arresting Officer at Airport (uncredited)

Robert Buchanan

Dr Alessi