The Colossus of Rhodes

Rory Calhoun

Darios

Lea Massari

Diala

Georges Marchal

Peliocles

Conrado San Martín

Thar

Ángel Aranda

Koros, Peliocles' brother

Mabel Karr

Mirte, Peliocles' sister

Mimmo Palmara

Ares

Roberto Camardiel

Serse, King of Rhodes

Alfio Caltabiano

Creonte

George Rigaud

Lisippo, Dario's uncle

Yann Larvor

Mahor

Carlo Tamberlani

Xenon

Félix Fernández

Carete, Diala's father

Ignazio Dolce

(uncredited)

Antonio Casas

Phoenician Ambassador

Fernando Calzado

Sirione

Arturo Cabré

(uncredited)

Álvaro de Luna

(uncredited)

Ángel Menéndez

Eteocle (uncredited)

Nello Pazzafini

Man Ringing Gong (uncredited)

Gustavo Re

Mercante (uncredited)

José María Vilches

Eros (uncredited)