- María José Cuevasdirector (as Maria Jose Cuevas)
- Juana Barraza(archive footage)
- Jeffrey Dahmer(archive footage)
- John Wayne Gacy(archive footage)
- Thierry Paulin(archive footage)
- Richard Ramirez(archive footage)
- Jorge Mario Tablas Silva(archive footage)
- Araceli Vázquez(archive footage)
- Aileen Wuornos(archive footage)
- Daniel Badillosupervising producer
- Aida A. Bautistaproductora de archivo
- Ivonne Gutierrezproducer
- Daniel Diaz Lovingexecutive producer
- Bernardo Loyolaexecutive producer
- María José Oviedoline producer
- Laura Woldenbergexecutive producer / producer
- Sergio Barrónhair department head
- Gerardo Islas Bulnesassistant re recording mixer / sound effects editor
- Mauricio Juárez Garcíafoley mixer
- Marisela Suarezfoley artist
- Javier UmpierrezSupervising sound editor / re-recording mixer / sound designer
- Cesar Zayassound mixer
- Fernando Carrascocamera operator (credit only)
- V Schmidt FernandoStedicam operator
- Ruben Montes Menesesfirst assistant camera
- Ariana Romero RodríguezB camera operator
- Leo Fallascolorist
- Andrés Jiménez Cascellaoperations director: Postproduction facility
- Andrés Lezapost-production coordinator
- Josué Navarretepost-production coordinator
- Giovanna SilvaD.I. Producer
- Jessica Sánchez Gómezdirector of post production: Postproduction facility (as Jessica Sanchez)
- Raúl Alcocerrecording supervisor
- Cristina Aristavioloncello
- Eugenio Casillasmusic producer / piano
- Geovani Chimalmusic editor
- Jomi Delgadoorchestrator
- Vladimir Escalaenglish horn
- Tiffany AstaProject Manager: English Voice Over (as Tiffany Roberts)
- Georgina BorbollaCfo Bold Finance
- Carla Cumminglegal and copyright clearance
- Francisco OruetaResearch Assistant
- Cassie PalmisanoAssistant Voice Director
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