The cast of superheroes and villains filling out Injustice: Gods Among Us continues to expand, with Netherrealm Studios and Warner Bros. confirming Green Arrow, Joker, and Green Lantern are in.
These characters join Batman, Catwoman, Cyborg, Flash, Harley Quinn, Nightwing, Solomon Grundy, Superman, and Wonder Woman. There are plenty more announcements for the future, too. I'm waiting for Matter-Eater Lad.