Mordecai is a calculating bootlegger and trigger-man for the Marigold gang and a major antagonist in the series, though he previously worked for the Lackadaisy crew. He's wary of the Marigold gang, and he doesn't really know why he's working for them, he finds his superior, Asa Sweet, very unproffesional and annoying, but he keeps that to himself. He likes his sense of order and does his best to maintain it, being the most serious out of all the characters.

He's from New York, but makes a concerted effort to disguise the accent and generally sticks with a combination of proper and deadpan. The only exception would be in the midst of one of his intermittent episodes of pure vexation - some of the New Yorker might show through if enough of his composure slips.