Ipotesi sulla scomparsa di un fisico atomico

Orso Maria Guerrini

As Ettore Majorana

Luigi Pistilli

As University assistant

Mariella Zanetti

As Mariella

Loredana Savelli

As Mariella's mother

Annalisa Fierro

As Mariella's friend

Guido Alberti

As S.E. Arturo Bocchini

Leandro Castellani

Original Story, Director

Guido De Angelis

Original Music Composer

Mirko Tebaldi

Original Story

Rino Filippini

Cinematography

Sergio Amidei

Original Story

Diego Fabbri

Original Story