Gael García Bernal as Ángel / Juan / Zahara

Fele Martínez as Enrique Goded

Daniel Giménez Cacho as Padre Manolo

Lluís Homar as Sr. Berenguer

Francisco Maestre as Padre José

Francisco Boira as Ignacio

Juan Fernández as Martín

Nacho Pérez as Young Ignacio

Raúl García Forneiro as Young Enrique

Javier Cámara as Paca / Paquito

Alberto Ferreiro as Enrique Serrano

Petra Martínez as Madre

Sandra as Transformista

Roberto Hoyas as Camarero

Agustín Almodóvar as Limpiador Piscina (uncredited)

Robert Forcadell as Man in Public (uncredited)

Luis Lobos Negros as Motero Ochentero (uncredited)

Pol Monen as Niño (uncredited)

Sara Montiel as Soledad (archive footage) (uncredited)

Pau Poch as Niño (uncredited)

Leonor Watling as Mónica (uncredited)

José María Yázpik as Extra (uncredited)