Ron Perlman

Hellboy (voice)

Selma Blair

Liz Sherman (voice)

Doug Jones

Abe Sapien (voice)

Peri Gilpin

Professor Kate Corrigan (voice)

Gwendoline Yeo

Kitsune (voice)

Dee Bradley Baker

Lightning / Kappa / Pilot (voice)

Phil LaMarr

Bureau Member / Pilot / Additional Voices (voice)

Mitchell Whitfield

Russell Thorne (voice)

Kim Mai Guest

Additional Voices (voice)