Klaus Kinski

Don Lope de Aguirre

Helena Rojo

Inés de Atienza

Del Negro

Brother Gaspar de Carvajal

Ruy Guerra

Don Pedro de Ursúa

Peter Berling

Don Fernando de Guzmán

Cecilia Rivera

Flores, Aguirre's Daughter

Daniel Ades

Perucho

Edward Roland

Okello

Alexandra Cheves

Armando Polanah

Armando

Daniel Farfán

Julio E. Martínez

Alejandro Repullés

Gonzalo Pizarro

Claus Biederstaedt

Brother Gaspar de Carvajal (voice) (uncredited)

Lothar Blumhagen

Don Pedro de Ursúa (voice) (uncredited)

Heinz Theo Branding

Don Fernando de Guzmán (voice) (uncredited)

Christian Brückner

Balthasar (voice) (uncredited)

Michael Chevalier

Conqueror Being Beheaded (voice) (uncredited)

Norbert Gescher

Conqueror (voice) (uncredited)

Justo González

González (uncredited)

Uta Hallant

Inés / Flores (voice) (uncredited)

Manfred Lehmann

Conqueror (voice) (uncredited)

Antonio Marquez

(uncredited)

Gerd Martienzen

Don Lope de Aguirre (voice) (uncredited)

Edgar Ott

Gonzalo Pizarro (voice) (uncredited)

Uwe Paulsen

Okello (voice) (uncredited)

Dieter Ranspach

Perucho (voice) (uncredited)