Michael Rooker is an American actor known for his role as Merle Dixon in AMC's The Walking Dead (2010–2013) and Yondu Udonta in Guardians of the Galaxy. Michael Rooker has hand signed this Walking Dead Zombie Merle Dixon 8x10 Photo. PSA Authentication #W20499 and PSA Certificate of Authenticity. Custom White Mat and Black Color Frame. Imperfect PSA Sticker as shown, sold as is, no returns.