Yeah, this list is nowhere close to complete. I just listed everyone who's got over 1000 posts (and a few extra) in hopes people here would add their own ideas and make changes if they like. A lot of the casting is stolen because I'm a very unoriginal person. There... I said it.
I'll come back to this later. I know I can come up with more on a good day.
allan1: Animalman: backwards7: Batwoman: The Huntress Bianca: Bibbo: Brian A. Ortiz/: Bloodwynd britneyspearsatemyshorts: Lobo Britannica: ButterRican: Power Girl Captain Sammitch: Chant: Chewy Walrus: Chris Oakley: Cowgirl Jack: Mary Marvel Danny: Darknight613: Martian Manhunter Dave: Dave the Wonder Boy: The Spectre (Jim Corrigan) Disco Steve: Drzsmith: First National Bastard: Fused: Kyle Rayner Grimm: jafabian: Jim Jackson: Joe Mama: JQ: The Heckler (Stu Mosely) kathleen: Wonder Woman Kimi: King Krypton: King Snarf: Kristogar Velo: Robin III (Tim Drake) LLance: Lor: Harley Quinn Lothar of The Hill People: Meeko: MisterJLA: Nowhereman: Pariah: Mr. Zsasz PJP: Pig Iron: Princess Koriand'r: Starfire Prometheus: Jason Blood rex: Rob Kamphausen: Roy BATTY: rufusTfirefly: Son of Mxy: Dr. Fate Stareena: Zatanna Stupid Dogg: Snapman: sneaky bunny: The Star Spangled Kid (Courtney) or Robin IV (Stephanie Brown) (haven't decided yet) SpandexMonkeyMan: Triumph (Billy Mac) The Eurostar: The Time Trust: Hourman I (Rex Tyler) THE Franta: the G-Man: Hawkman thedoctor: The Indestructible Man: theory9: TK-069: Superboy URG: Solomon Grundy Uschi: Vera Black of the Justice League Elite Ultimate Jaburg53: wannabuyamonkey: Wednesday: wenchofthelodge: whomod: Green Arrow (Oliver Queen) winged creature: ZOD: Zod