There are several unlockable characters in WWE All Stars for the PS3 and Xbox 360.
Here is the full list of unlockable characters, and how to unlock them.
Drew McIntyre – Win the Pride of Scotland Fantasy Warfare match with Drew McIntyre vs. Roddy Piper
Eddie Guerrero – Win the Greatest High Flyer Fantasy Warfare match with Eddie Guerrero vs. Rey Mysterio Jr.
Edge – Win the Excellence of Execution Fantasy Warfare match with Edge vs. Bret Hart
Jack Swagger – Win the Stars & Stripes Showdown Fantasy Warfare match with Jack Swagger vs. Sgt. Slaughter
Jimmy Snuka – Win the Ruthless Aggression Fantasy Warfare match with Jimmy Snuka vs. Kane
Kane – Win the Ruthless Aggression Fantasy Warfare match with Kane vs. Jimmy Snuka
The Miz – Win the Perfectly Awesome Fantasy Warfare match with The Miz vs. Mr. Perfect
Mr. Perfect – Win the Perfectly Awesome Fantasy Warfare match with Mr. Perfect vs. The Miz
Sgt. Slaughter – Win the Stars & Stripes Showdown Fantasy Warfare match with Sgt. Slaughter vs. Jack Swagger
Shawn Michaels – Win the Mr. Wrestlemania Fantasy Warfare match with Shawn Michaels vs. The Undertaker