Didn't feel like writing up my own so I just quoted last years. I'll update this post with new entries.
Grouch = Mr.Goodbar
Zaladane = Skinny Pete
Tanthias = Spider-Pig
Good Swimmer/skullpoker = Candyman
Eldred = Colonel Guile
Nemkoon = Guzma
Darkseid = BOY
Gypsy = Char Aznable