Self (archive footage) (1 episode)
Deathstroke (voice)
Big Boss (voice)
Vice President Rodriguez
Delgado (voice)
Detective Garcia
Mr. Capo
Owen Granger (115 episodes)
Duelist (voice) (1 episode)
Felix Valdez (13 episodes)
Magister Hulka / Alpha #4 (voice) (1 episode)
Delgado (voice)
L-1 (voice) (2 episodes)
Vandal Savage (voice) (7 episodes)
Vandal Savage / Bibbo Bibbowski (voice) (1 episode)
Vandal Savage / Tribune (voice) (1 episode)
In Memory Of (1 episode)
Fred Collins Boyd (1 episode)
Vincent
Silvio Manfredi / Silvermane (voice) (1 episode)
Silvermane (voice) (1 episode)
General Mallick (1 episode)
Defense Attorney Whitten (1 episode)
Joey / Teddy Carmichael (1 episode)
J'onn J'onzz / Martian Manhunter (voice)
Sinestro (voice) (1 episode)
Jonas Bledsoe (8 episodes)
Agent Hopkins (voice) (1 episode)
Agent Peters
Cliff Castleton
Colonel Garret
Tarakudo / Shadowkhan King (voice) (8 episodes)
Sgt. Walter Drazin
Dr. Daniel Critchley
Lester
Garrett Macy (117 episodes)
Director (4 episodes)
Eduardo Ruiz
Jack McManus (1 episode)
Nathan Berry (1 episode)
Antaeus (voice) (1 episode)
Joe Boone
Shan-Yu (voice)
Director of Hatcheries and Conditioning
Dr. Eno / The Weather Man
Ortega Peru
Richard Dees
Mark Torrance (uncredited) (1 episode)
Centeno
Dexter Moyers
Prologue Narrator
Abbazzia (1 episode)
Thomas Manning
Win Carter
Mr. Parker (1 episode)
Ray Hayes
Gribbon
Lloyd Henreid (4 episodes)
Quigley
Charlie Pope
Tony Castellano
Barry Landers
Commander Arvid Harbinger
Kaufman
Bud Budwaller (3 episodes)
Albert Rosenfield
Lewis Young (2 episodes)
Dist. Atty. Steven Walzer
Wilhoite
Beau Jack Bowman (8 episodes)
Ralph Hess
Albert Rosenfield (19 episodes)
D.A. Todd Spurrier (6 episodes)
Amador
The Biker
Snyder
District Attorney (2 episodes)
Bob Morton
Dragon
First Officer
Roget
Angel
Bobby Wickes (1 episode)