Anti-Cosmo

Anti-Cosmo is an Anti-Fairy.

Chapter 5 Part 2
He is revealed to be the owner of the Teen Titans Go evil base, where he is 'doing his business' alongside Anti-Turkeyball.

Captain Cape knocks him unconcious, saying that he doesn't like his son (Foop).

He then later appears in the Target Café HQ, where he is working as a cook there. Anti-Cosmo hits Captain Cape on the head with a frying pan, as a revenge for hating Foop.