Teen Titans and Superman artist Eddy Barrow, Mice Templar and Furious writer Bryan JL Glass, Sesame Street’s Big Bird and Oscar the Grouch, Caroll Spinney, have been added to the guest roster of this weekend’s Pittsburgh Comicon, which runs from Friday, September 27 through Sunday, September 29, 2013. Spinney will appear at the ToonSeum booth during the show, which is held at the Monroeville Convention Center.

Previously announced guests include Guest of Honor Jim Steranko, George Pérez, Jim Balent, Barry Kitson, Herb Trimpe, Mike McKone, Scott McDaniel, Michael Golden, Brendan and Brian Fraim, and others.

The full guest list is on the show’s site.

Zenescope Entertainment will offer three Pittsburgh Comicon Exclusive variants with covers by convention guests Jamie Tyndall and Talent Caldwell) and they will also screen the full pilot episode of Grimm Fairy Tales Animated, Saturday at 2:00 PM.