So far there are 20 confirmed playable characters for Playstation All-Stars Battle Royale. Check back to this article for updates!
 Updates:
8/30/12: Nariku and Sir Daniel are on the roster
Big Daddy | Cole MacGrath | Colonel Radec | Evil Cole MacGrath |
Dante | Fat Princess | Heihachi Mishima | Jak and Daxter |
Kratos | Nariko | Nathan Drake | PaRappa the Rapper |
Raiden | Ratchet and Clank |    Sackboy | Sir Daniel Fortesque |
Sly Cooper |      Spike | Sweet Tooth | Toro Inoue |