Additional interviews and Spanish-language translations: Greg Solano
Initial interviews: Nick Nunziata
Guillermo del Toro, writer/director/producer
Alfonso Cuarón, producer
Bertha Navarro, producer
Ivana Baquero, actress (Ofelia)
Sergi López, actor (Vidal)
Maribel Verdú, actress (Mercedes)
Doug Jones, actor (Faun and Pale Man)
Guillermo Navarro, director of photography
Eugenio Caballero, production designer
Pilar Revuelta, set decoration
Sara Bilbatúa, casting
Javier Navarrete, composer
David Martí, DDT SFX makeup artist
Jeff Barnes, production executive, CafeFX
Everett Burrell, CafeFX visual effects supervisor
James Cameron, director
Thomas Tull, producer
Mike Mignola, comics artist, creator of Hellboy