Episodio 6

Gary Cole

Harvey Birdman (voice)

Thomas Allen

Peanut (voice)

Stephen Colbert

Phil Ken Sebben / Myron Reducto (voice)

John Michael Higgins

Mentok the Mindtaker (voice)

Chris Edgerly

Peter Potamus (voice)

Paget Brewster

Birdgirl (voice)

Peter MacNicol

X the Eliminator (voice)

Michael McKean

Evelyn Spyro Throckmorton (voice)

Steve Landesberg

Bailiff (voice)

Maurice LaMarche

Fred Flintstone / Bird / Can Opener (voice)

Adam Lawson

Avenger / Gleep (voice)

Tress MacNeille

Wilma Flintstone / Pebbles Flintstone (voice)

Doug Preis

Thundarr (voice)

Kevin Michael Richardson

Barney Rubble (voice)

Frank Welker

Jabberjaw (voice)