WMG / Muzzy in Gondoland

Corvax is also an alien.

He's the only goblin-like creature in a world of Dogfaces, he has an Odd Name Out that sounds more exotic than the rest of the cast, and he uses advanced technology that the other characters lack, from a Magical Computer to an invisibility device (which Muzzy, who is explicitly an alien, can immediately figure out how to use). Maybe he lost his spaceship while visiting Gondoland, and eventually became a royal advisor, charming the King with his Techno Wizard skills. This would make his lust for Sylvia a case of Mars Needs Women.