Quién sabe?

Gian Maria Volonté

Chuncho Munos / 'El Chuncho'

Klaus Kinski

El Santo

Martine Beswick

Adelita

Lou Castel

Bill Tate

Aldo Sambrell

Lt. Alvaro Ferreira

José Manuel Martín

Raimundo

Jaime Fernández

General Elías

Andrea Checchi

Don Felipe

Spartaco Conversi

Eufemio

Joaquín Parra

Picaro

Santiago Santos

Guapo

Valentino Macchi

Train engineer

Sal Borgese

Bandit

Damiano Damiani

Journalist with General Elías

Carla Gravina

Rosario

Guy Heron

Pepito