Dr. Orion Zephyr
Prentice Stanton
Pappi
Kunyi (voice)
Optimus Primal (voice)
Podesta (voice)
Sheriff Hickey
Benedict Drask
Mr. Wallendorf
Bruno
Admiral
Preston
Mr. Wiley
Henry
Charlie Storm
General Pershing
Bernardo (voice)
Birdie
Narrator
Asher
Himself
Magnus (voice)
Optimus Primal / Optimal Optimus (voice)
The Sheriff
Peter
Sheriff Jack
Shoggoth (voice)
Al Braverman
Anslinger
Shoggoth (voice)
Ed Murphy
Kidman
Terry 'Shotgun' Coburn
Calabrese
Viktor Dragovic
Xibalba (voice)
Self (archive footage)
Barry Lerner
Det. Chilcoat
Narrator (voice)
Judge Henry South
Pete
Narrator
Polyphemus (voice)
Slade Wilson / Deathstroke (voice)
Hannibal Chau
Big Mike
Mayor Williams
Nino
Felson
Stabbington Brother (voice)
Parker (voice)
Nicola
Priest Bill
Dr. Julian
Sheriff
Jim
Wesley
Brother Samuel
Father Duffy
Self - Hellboy, Hellboy 1 & 2
Gunnar
Red Cap (voice) (uncredited)
Bobby
Elder Vorin (voice)
Hellboy (voice)
Hellboy (voice)
Dwayne Burcell
Hellboy (voice)
Curtis Sunday
Captain Skunkbeard / Biff Wellington (voice)
Ed Pollack
Collie Entragian
Father Drake
Hotep / Ancient One #2 (voice)
Kago (voice)
General von Binding
Detective Sergeant Perry
Hellboy
Acme VP, Never Learning
'Ugly' Jim McCrae
Colonel McKellog
Captain
Murchison
Dr. William Winslow
Christopher Bellows
The Reman Viceroy
Dieter Reinhardt
Morgan
Mitchell
Koulikov
Lord Morton
Prof. Sam Tucker (voice)
Charles Burden Sr.
Nick Everson
Dr. Harlan Jessup
Marshal Nalhober
Frank Brodie
The Director
Booking Agent
Grasping (voice)
Cemetery Caretaker
Gascone
Jerry Paul
Dr. Ramsey Krago
Alan Manieski
Johner
Boltar
Cliff
Donnie Shank
Sayer of the Law
Lord Vox of Vestron
Doctor Frederick Texarian
Gambler
Norman Arbuthnot
Sylvester
Mr. Scratch (voice)
Chas Bradley
Detective Pantella
Konstantine Konali
Dr. Douglas Eben
John McClure
Lt. Col. Delacroix
Angel de la Guardia
Jack's Attorney
Pap Finn
Captain Soames
Frank Cerrillo
Jacob Shuler
Self (uncredited)
Salvatore
Amoukar
Slade Klossus (voice)
Marshall (voice)
