Comic expo brings out heroes, villains

April 15, 2012 6:18:53 AM PDT
If you're near McCormick Place this weekend, expect to see some familiar faces at the Chicago Comic and Entertainment Expo.

Catwoman, the Joker, and even Darth Vader and a storm trooper or two are thrilling fans.

A slew of real life stars are also on hand to meet fans.

Sunday's special guests who will sign autographs include John Cusack, Val Kilmer and Sean Astin.