Franco Nero as Andrea Bild

Silvia Monti as Helene Volta

Wolfgang Preiss as Police inspector

Edmund Purdom as Edouard Vermont

Rossella Falk as Sophia Bini

Renato Romano as Dr. Richard Bini

Guido Alberti as Traversi

Luciano Bartoli as Walter Auer

Agostina Belli as Giulia Soavi

Maurizio Bonuglia as John Lubbock

Pamela Tiffin as Lu Auer

Corrado Gaipa as Editor

Andrea Scotti as Vogel

Ira von Fürstenberg as Isabel Lancia

Luigi Antonio Guerra as Man

Irio Fantini as Man

Michel Barnes as Tony Volta (uncredited)

Jean-Pierre Clarain as Journalist in Bini's Home (uncredited)

Alfonso Giganti as Silvester party guest (uncredited)

Nando Sarlo as Man in Black Tie (uncredited)

Maria Tedeschi as Funeral Guest (uncredited)

Pupita Lea Scuderoni as Funeral Guest (uncredited)