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

Angus MacInnes

Sgt. Whitman

Jim Howick

Cpl. Matlin

Álvaro Navarro

Kid

Rory Copus

Kid on Rooftop

Tara Hugo

Doctor Jenkins

Andrea Miltner

Doctor Marsh

Jeremy Zimmermann

Lobby Guard

William Hoyland

General Klaus Werner von Krupt

Justin Svoboda

Young Guy

Winter Ave Zoli

Girlfriend

Santiago Segura

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)