Asa is a high-level gangster of the Marigold gang, and Mordecai, Nicodeme and Serafine's superior, though Asa himself is responsible to unknown parties, operator of the Marigold Room, night manager of the Maribel Hotel, Atlas' former business associate and a major antagonist in the series. He's a bombastic and crass man, one of the only people that really get under Mordecai's skin.

He has a robust, rather bombastic voice - confident that he's being funny even if no one else is laughing. He sounds like a cross between Jackie Gleason and John Goodman.