Richard Denning as Hank Scott

Mara Corday as Teresa Alvarez

Carlos Rivas as Artur Ramos

Mario Navarro as Juanito

Carlos Múzquiz as Dr. Velazco

Pascual García Peña as José de la Cruz

Fanny Schiller as Florentina

Arturo Martínez as Major Cosio

Pedro Galván as Father Delgado

José Chávez as Train conductor (uncredited)

Manuel Sánchez Navarro as Victor Steven (uncredited)

Roberto Contreras as Chumacho (uncredited)

Quintín Bulnes as Lineman killed on pole (uncredited)

Isabel Vázquez as Villager (uncredited)

Leonor Gómez as Villager (uncredited)

Bob Johnson as Narrator (voice) (uncredited)