J'oh can mix 54,382 different kinds of drinks, from Abraxan Blue Lava Fireballs to Zygotic Fermented Slime Slurpees. However, like most of the patrons of the Black Hole Bar and Grill (where he tends bar), he is violently robophobic. A member of an unspecified alien race, he has numerous blue tentacles, a huge fanged mouth, and odd blue lumps on top of his head.