Colbert also voiced 2 significant roles in Adult Swim's Harvey Birdman: Attorney at Law: the characters of Phil Ken Sebben and Myron Reducto, which ran for three seasons on Adult Swim. The show recycled classic Hanna-Barbera cartoon characters in what could loosely be described as a "courtroom drama". The protagonist is Harvey Birdman of the classic 60's cartoon, Birdman and the Galaxy Trio. He works at law firm Sebben & Sebben, defending other Hanna-Barbera cartoon characters who have gotten themselves into legal scrapes.