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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)