Miguel Ferrer

Deathstroke (voice)

Self

FBI Agent Albert Rosenfield

Vice President Rodriguez

Delgado (voice)

Mr. Capo

Jefé

Owen Granger

Jack McManus

Silvermane (voice), Silvio Manfredi / Silvermane (voice)

J'onn J'onzz / Martian Manhunter (voice)

Amador

Mr. Parker

Jonas Bledsoe

Fred Collins Boyd

Agent Hopkins (voice)

Cliff Castleton

Colonel Garret

Sinestro (voice)

Garrett Macy

Tarakudo / Shadowkhan King (voice)

Antaeus (voice)

Shan-Yu (voice)

Director of Hatcheries and Conditioning

Dr. Eno / The Weather Man

Ortega Peru

Felix Valdez

Mark Torrance (uncredited)

Dr. Daniel Critchley

Dexter Moyers

Thomas Manning

Tony Castellano

Kaufman

Albert Rosenfeld

Snyder

First Officer

Roget

Mitch Bruckner, Gary, Hitman (uncredited)