Câmara

• Rick Stribling — grip
• Tony Magaletta — first assistant camera
• Jon Jung — assistant camera
• Deborah Thomas — data wrangler
• Richard Dastych — additional grip
• Jakub Vajner — camera trainee
• Dan Balzer — second assistant camera
• Guillermo Navarro — director of photography
• Jaromír Šedina — steadicam operator
• Martin Grosup — camera operator
• John J. Moers — additional camera
• Egon Endrényi — still photographer

Equipa técnica

• Andrew Havelberg — post production assistant
• Javier Soto — documentation & support
• Michal Krbeček — loader
• Rick Polikowski — propmaker
• Monty L. Simons — stunt coordinator
• John Teska — digital effects supervisor
• Mike Mignola — creator
• Adam Aldridge — special effects technician
• Zdeněk Dvořáček — stunts
• Matthew Johnson — special effects assistant
• Klára Palivcová — stunts
• Mike Woodley — aerial coordinator
• Ladislav Beran — fight choreographer
• Sandra Butterworth — dialogue coach
• Robert Hutchins — pyrotechnician
• Todd Bryant — stunt double
• Jiří Šimberský — stunts
• David Lištván — stunts
• Ivan Mareš — stunts
• Jan Petřina — stunt double
• David Mottl — stunts
• Jan Loukota — stunts
• Tomáš Tobola — stunts
• Kamila Zenkerová — stunts
• Tomáš Peteráč — stunts
• Hana Dvorská — stunts
• Grant Fletcher — stunts
• Jiri First — stunts
• Zuzana Drdacka — stunts
• Darrell Davis — stunts
• Petr Bozdech — stunt double
• Lou Horváth — stunts
• Rene Hajek — stunts
• Jimmy Hart — stunt double
• Tom Elliott — fight choreographer
• Guillermo del Toro — fight choreographer
• Juan Serrano — animatronic and prosthetic effects
• Marc Sadeghi — executive visual effects producer
• Jon Baker — armorer
• Buck Sanders — additional music
• Kevin Baillie — cg supervisor
• Jeff Ward — fight choreographer
• Kevin Lin — quality control supervisor
• Brian Morishita — machinist
• Ericka Bryce — set medic
• Marianna Krenova — stand in
• Michal Chadima — video assist operator
• Tony Vizina — driver
• Jim Conrads — post production supervisor
• Shadi Almassizadeh — sequence supervisor
• Vaclav Mottl — transportation coordinator
• Gary Gillingham — production controller
• Pavel Cajzl — stunt coordinator
• Pavel Bezděk — stunts
• Ota Bareš — animal coordinator
• Jakub Kadlec — transportation captain
• Joseph Carson — visual effects editor
• Norman Cabrera — makeup effects

Iluminação

• Dean Brkic — rigging gaffer
• Václav Čermák — gaffer
• Kriz David — electrician

Produção

• Moira Houlihan — publicist
• Ilt Jones — production supervisor
• Andrea Clark — casting associate
• Petr Keller — executive in charge of production
• Jiri Tichacek — production accountant
• Adam Fuchs — assistant location manager
• Damiana Kamishin — assistant production coordinator
• Jan Strašík — assistant unit manager
• Nancy Bishop — location casting
• Karolina Cerna — assistant accountant
• Rob Meisenholder — first assistant accountant
• Alonzo Ruvalcaba — head of production
• Sarka Kindlova — payroll accountant
• David Ebner — production executive
• Jeff D. Miller — production assistant
• Todd Garner — production executive
• Lloyd Levin — producer
• Mike Mignola — co-executive producer
• Patrick J. Palmer — executive producer
• Lawrence Gordon — producer
• John T. Sweeney — production coordinator
• Juan Bronson — production coordinator
• Ilt Jones — location manager
• Patrick J. Palmer — unit production manager
• Mirka Janatova — unit manager
• Jeremy Zimmermann — casting
• Alan Collis — production manager
• Mike Richardson — producer

Som

• Michael Axinn — foley
• Tony Mederos — sound editor
• Steve Boeddeker — sound designer
• Gene Radzik — dolby consultant
• Frédéric Le Louet — sound recordist
• Travis Crenshaw — foley recordist
• Ellen Heuer — foley artist
• Mark Holding — sound mixer
• Martin Lonek — utility sound
• Daryl Lathrop — adr recordist
• Pete Anthony — conductor
• Jessica Bellfort — assistant dialogue editor
• Frank 'Pepe' Merel — foley mixer
• Michael Silvers — adr editor
• Justin Reeve — music coordinator
• Weldon Brown — adr mixer
• Richard Quinn — dialogue editor
• Juan Peralta — sound mix technician
• John Kurlander — scoring mixer
• Marco Beltrami — original music composer
• Peter Eusebe — boom operator
• Pete Anthony — orchestrator
• Frank E. Eulner — supervising sound editor
• Shannon Mills — sound effects editor
• Peter Afterman — music supervisor
• Michael T. Andreas — music editor
• Lisa Chino — first assistant sound editor

Efeitos visuais

• Sean Hoessli — visual effects supervisor
• Mauricio Baiocchi — animation supervisor
• Velvy Appleton — visual effects producer
• John Karner — vfx artist
• Christopher Gwynne — visual effects technical director
• Radost Yonkova Ridlen — visual effects compositor
• Ramjasha Rhodes — visual effects production assistant
• Tim Dobbert — matchmove supervisor
• Ki Jong Hong — creature technical director
• Kirstin Bradfield — rotoscoping artist
• Jance Allen — compositing supervisor
• Christian Haley — matte painter
• Natalie Baillie — digital compositors
• Carl Beyer — visual effects production manager
• Wayne D. Barlowe — creature design
• Chuck Duke — animation
• David R. Morton — vfx artist
• Nick Allder — special effects supervisor
• Nathan Abbot — i/o supervisor
• Kenneth Bailey — visual effects
• Guy Hauldren — 3d supervisor
• Everett Burrell — visual effects supervisor

Guarda-roupa e maquilhagem

• Deborah Jarvis — makeup artist
• Tomas Hais — set dressing artist
• Inka Braťková — costume supervisor
• Lancel Reyes — prosthetic supervisor
• Kazu Hiro — makeup designer
• Brett-Patrick Jenkins — assistant makeup artist
• Simon Webber — prosthetic makeup artist
• Olina Norkova — contact lens technician
• Heather Moore — key costumer
• Mike Elizalde — makeup supervisor
• Colleen Bryant — tailor
• Wendy Partridge — costume design
• Mike Elizalde — makeup supervisor
• Georgina Abanto — hairstylist
• Larisa Šrámková — seamstress
• Matt Rose — makeup designer

Direção de arte

• Lenka Rock — art department coordinator
• Stuart Kearns — assistant art director
• Elliot Scott — art department trainee
• Andrew Booth — creative director
• Guy Bradley — draughtsman
• Burk Sauls — special props
• Paul Prischman — storyboard artist
• Karin Fong — title designer
• Steve Summersgill — assistant set decoration
• Marc Gabbana — concept artist
• Drew Struzan — art designer
• Peter Francis — art direction
• Michael Lindsay — property master
• Hilton Rosemarin — set decoration
• Stephen Scott — production design
• Simon Lamont — supervising art director
• Stephan O. Gessler — set designer
• Marco Bittner Rosser — art direction
• James Hambidge — art direction
• Jordu Schell — sculptor
• Andrew Booth — creative director
• Simon Wakefield — set decoration
• Gene Warren III — production design
• Petr Skvor — location scout
• Yasushi Nirasawa — conceptual design

Realização

• J. Michael Haynie — assistant director
• Lori Wyant — script supervisor
• Mark Taylor — second assistant director
• Richard Goodwin — third assistant director
• Andy Howard — second second assistant director
• Guillermo del Toro — director

Montagem

• Laura Rindner — first assistant editor
• Curtis Lindersmith — digital intermediate editor
• Michael Eaves — digital intermediate colorist
• Lorene Simpson — digital intermediate producer
• Brano Danis — colorist
• Jana Lynn Gold — associate editor
• Michael Healey — digital colorist
• Tamaron Greene — assistant editor
• Gary Burritt — negative cutter
• Peter Amundson — editor
• Perry M. Kimura — digital intermediate
• Jaroslav Dvorák — editorial production assistant

Argumento

• Mike Mignola — writer
• Peter Briggs — writer
• Guillermo del Toro — screenplay
• Peter Briggs — screenstory
• Mike Mignola — comic book

Elenco

• Ron Perlman — Hellboy
• Selma Blair — Elizabeth 'Liz' Sherman
• Doug Jones — Abraham 'Abe' Sapien
• John Hurt — Prof. Trevor 'Broom' Bruttenholm
• Rupert Evans — John Myers
• Jeffrey Tambor — Tom Manning
• Ladislav Beran — Karl Ruprecht Kroenen
• Bridget Hodson — Ilsa Haupstein
• Karel Roden — Grigori Rasputin
• Brian Steele — Sammael
• Corey Johnson — Agent Clay
• Kevin Trainor — Young 'Broom'
• Brian Caspe — Agent Lime
• James Babson — Agent Moss
• Stephen Fisher — Agent Quarry
• Garth Cooper — Agent Stone
• Angus MacInnes — Sgt. Whitman
• Jim Howick — Cpl. Matlin
• Mark Taylor — Truck Driver
• Daniel Aarsman — Kid
• Bettina Ask — Kid
• Álvaro Navarro — Kid
• Emilio Navarro — Kid
• Rory Copus — Kid on Rooftop
• Tara Hugo — Doctor Jenkins
• Richard Haas — Second Doctor
• Andrea Miltner — Doctor Marsh
• Jo Eastwood — Down's Patient
• Charles Grisham — Museum Guard
• Jan Holíček — Museum Guard
• Jeremy Zimmermann — Lobby Guard
• Monty L. Simons — Orderly
• Pavel Cajzl — Sherpa Guide
• Andrea Stuart — Girl with Kittens
• William Hoyland — General Klaus Werner von Krupt
• Millie Wilkie — Young Liz
• Bob Sherman — Television Host
• Ellen Savaria — Blonde Television Reporter
• Petr Sekanina — German Scientist
• Aleš Košnar — German Scientist
• Justin Svoboda — Young Guy
• Winter Ave Zoli — Girlfriend
• Santiago Segura — Train Driver
• Albert Moy — Train Driver
• David Hyde Pierce — Abe Sapien (voice) (uncredited)
• Helene Maksoud — Liz Sherman's Mother (uncredited)
• Guillermo del Toro — Guy Dressed as Dragon (uncredited)
• Mike Mignola — Knight (uncredited)
• Miroslav Lhotka — Museum Guard (uncredited)
• Michael Lindsay — Security Guard (voice) (uncredited)
• Todd Kramer — Radioman (uncredited)