It is owned by an aging hippie named Riker, who says that he established the café in order to provide a comfortable atmosphere independent of the more fashionable corporate-run coffee shops. Riker often employed his son to help with the day to day operations, but the boy, a neo-anarchist, openly hated working alongside his father.
During the "Day of Judgment" affair, a demon named Torcher raided the Mad Yak and attempted to burn it down. Snapper Carr soothed the demon's aggressive tendencies by feeding him some of Riker's delicious cheesecake. Torcher decided to forego his more violent urges and became a regular patron at the café.