While comic book fans might associate Michael Rooker most with playing Merle on The Walking Dead and being cast as Yondu in the upcoming Guardians Of The Galaxy, it was a different franchise that he seemed to be representing at Dragon Con.
During one of The Walking Dead panels, the Ghostbusters theme song started playing, and Michael Rooker pretended to be fielding a phone call from someone. Then, Rooker jumped up out of his seat and ripped open his jacket to reveal a Ghostbusters uniform, before running off stage.
Then, in another Ghostbusters moment, Michael Rooker went hunting for original Ghostbuster Ernie Hudson on the convention floor. Check out Michael Rooker in full Ghostbuster costume in the video below from SixStringSamurai.