Cast 34

1. 

   Pedro Armendáriz Jr.

   Carlos (adult)

2. 

   Elizabeth Aguilar

   Mariana

3. 

   Saby Kamalich

   Carlos' Mother

4. 

   Aarón Hernán

   Carlos' Father

5. 

   Luis Mario Quiroz

   Carlos

6. Juan Carlos Andrews

   Jim

7. 

   Gerardo Quiroz

   Héctor

8. 

   José Luis Cruz

   Profesor Mondragón

9. Adolfo Olmos

   Rosales

10. Jun Kawabe

    Toru

11. Cuautli Arau

    Alberto

12. Salvador Rodríguez

    Ayala

13. Andrés Sánchez

    Alcaráz

14. 

    Julio Monterde

    School Principal

15. Fernando Palavicini

    Rosales (adult)

16. 

    Héctor Ortega

    The Priest

17. 

    Ignacio Retes

    Psychiatrist

18. Ángeles González

    Psychologist

19. 

    Isabel Andrade

    Isabel

20. Mariana Luiselli

    Estelita

21. Dinorah Corti

    Luisa María

22. 

    Roberto Palazuelos

    Esteban, Isabel's boyfriend

23. Corina Mendoza

    Clara

24. Jorge Rocha

    Sir (El Señor)

25. Agustín Silva

    Don Sindulfo, the janitor

26. Alejandro Ripstein

    Hector's friend

27. 

    Bruno Bichir

    Hector's friend

28. Yamil Atala

    Hector's friend

29. María Luisa Coronel

    Doorwoman

30. Lorena Shelley

    Woman II

31. Alfredo Rosas

    Doorman

32. Rubén Márquez

    Griever

33. Eugenia Leñero

    Griever

34. 

    Ernesto Gómez Cruz

    Gardener

Crew 21