Ahura Mazda

Ahura Mazda is the god of.

History
When God and the Tetragrammaton were arguing over what religion Krusty technically was, the Tetragrammaton suggests they ask Mazda. God says he won't ask Mazda anything as Mazda is drunk, before Mazda stumbles into the room with a goblet filled with wine and goes "Oh, and like you're not!" to God before passing out.

Non-canon
Ahura Mazda appears in Heaven after God decided to allow everyone good into Heaven.