Harvey Birdman, Attorney at Law

Gary Cole
Harvey Birdman (voice) / Judge Hiram Mightor (voice)

Stephen Colbert
Phil Ken Sebben / Myron Reducto (voice) / Fed #2 (voice) / Pirate (voice) / Civi...

Thomas Allen
Peanut (voice)

John Michael Higgins
Mentok the Mindtaker (voice)

Chris Edgerly
Peter Potamus (voice)

Peter MacNicol
X the Eliminator (voice) / / X

X the Eliminator (voice) / / X

Maurice LaMarche
/ Yogi Bear (voice) / Azul Falcone / Stan Freezoid (voice) / Azul Falcone (voic...

Paget Brewster
Birdgirl (voice) /

Phil LaMarr
/ FEAR #2 / Black Vulcan (voice) / Black Vulcan / Civilian #2 (voice)

Neil Ross
/ Dr. Benton C. Quest / Vulturo (voice)

Grey DeLisle-Griffin
Dr. Gale Melody / Debbie (voice) / Debbie / DMV Operator / X's Wife (voice) / Da...

Michael McKean
Evelyn Spyro Throckmorton (voice)

Lewis Black
The Deadly Duplicator (voice)

Steve Landesberg
Bailiff (voice) / Grok (voice) / Doctor Quincy (voice)

Frank Welker
Avenger / Fed #1 / Juror (voice) / Fred Jones / Avenger / Robot (voice) / Jabber...

Debi Mae West

Wally Wingert
/ Hadji (voice)

Toby Huss
/ Devlin (voice)

Tom Kenny
Boo Boo (voice) / Top Cat (voice) / Elroy (voice)

Bill Farmer
Secret Squirrel (voice)