Equipo técnico

• Alfonso Cuarón — thanks
• Emilio Echevarría — thanks
• Laurencio Cordero — special effects
• Gerardo Moreno — stunt coordinator
• James Cameron — thanks

Sonido

• Eric A. Norris — sound effects editor
• Javier Álvarez — original music composer
• Fernando Cámara — sound engineer

Producción

• Arthur Gorson — producer
• Bertha Navarro — producer
• Julio Solórzano Foppa — associate producer
• Bernard L. Nussbaumer — co-producer
• Rafael Cruz — associate producer
• Jorge Sánchez — associate producer
• Francisco Murguía — co-producer
• Alejandro Springall — co-producer

Montaje

• Raúl Dávalos — editor
• Jennifer Dolce — first assistant editor

Cámara

• Guillermo Navarro — director of photography

Arte

• Brigitte Broch — art direction
• Tolita Figueroa — production design

Dirección

• Batan Silva — first assistant director
• Guillermo del Toro — director
• Joaquin Silva — second assistant director

Vestuario y maquillaje

• M. Carrajal — makeup artist
• Genoveva Petitpierre — costume design
• Rigo Mora — special effects makeup artist

Guion

• Guillermo del Toro — screenplay

Reparto

• Federico Luppi — Jesus Gris
• Ron Perlman — Angel de la Guardia
• Claudio Brook — De la Guardia
• Margarita Isabel — Mercedes
• Tamara Shanath — Aurora
• Mario Iván Martínez — Alchemist
• Daniel Giménez Cacho — Tito
• Farnesio de Bernal — Manuelito
• Juan Carlos Colombo — Funeral Director
• Jorge Martínez de Hoyos — Narrator (voice)
• Javier Álvarez — Bleeding Man
• Gerardo Moscoso — Drunk
• Eugenio Lobo — Stoned Man
• Laurencio Cordero — Watchman
• Guillermo del Toro — Man Walking Dog (uncredited)
• Francisco 'Napo' Sanchez — Mimo
• Luis de Icaza — Tango Student