as Humberto Suárez

as Unamuno

as Producer

as Escalante

as President of the Institute of Biotechnology

as

as Ernesto Martel

as

as Fray Pedro de Alcántara

as Tomás Bilbatúa

as Dalmau

as Motorista

as Emilio Fuentes

as Silvio

as Manuel Junco

as Ugarte/Valdivia

as Polidori

as Diego de Velazquez

as Pablo Picasso

as Leandro

as Simón

as Doctor Monasterrio

as

as Don Julián

as Narrator (uncredited)

as Juan Oribe

as Corsario

as Luis

as Miguel

as Antonio

as

as Bocas

as Pascual Duarte