A group of juvenile delinquents live a violent life in the infamous slums of Mexico City; among them Pedro, whose morality is gradually corrupted and destroyed by the others.
Estela Inda
Mother
Miguel Inclán
Carmelo
Alfonso Mejía
Pedro
Roberto Cobo
Jaibo
Alma Delia Fuentes
Meche
Francisco Jambrina
School Principal
Jesús García Navarro
Father
Efraín Arauz
Cacarizo
Sergio Virel
Ruffian
Jorge Pérez
Pelón
Javier Amézcua
Julián
Mario Ramírez
Ojitos
Ernesto Alonso
Narrator (uncredited)
Luis Alcoriza
Screenplay
Carlos Savage
Editor
Luis Buñuel
Director
Gabriel Figueroa
Director of Photography
Óscar Dancigers
Producer
Gustavo Pittaluga
Original Music Composer
Edward Fitzgerald
Production Design
Ignacio Villareal
Assistant Director
Federico Amérigo
Production Manager
Antonio de Salazar
Administration
Fidel Pizarro
Production Director
Jesús González Gancy
Sound Director
Alberto Valenzuela
Assistant Editor
Rodolfo Halffter
Music Director
Music Arranger
José B. Carles
Sound Recordist
