In 1992 he was the host of Entertaining America on WCTR, a talk radio station. He had wanted to call the show Stack the Dex, but was unable to change the name. He planned to interview Richard Goblin, a chef, before being fatally and accidentally shot by Jack Howitzer. Dexter was later replaced by Lazlow, with Howitzer later put on trial for the murder of Dexter.
He is evidently a follower of the Epsilon Program as he can frequently be heard saying the name of the cult's supposed celestial deity, Kifflom.
He is voiced by Peter Marx.