Michael Rooker is an American actor best known for his roles in The Walking Dead, Guardians of the Galaxy, and

Rooker first rose to prominence for portraying Henry in Henry: Portrait of a Serial Killer (1986). Rooker is best known for starring as Merle Dixon in the AMC series The Walking Dead (2010–2013) and as Yondu Udonta in Guardians of the Galaxy (2014), followed by its sequels Guardians of the Galaxy Vol. 2 (2017) and Guardians of the Galaxy Vol. 3 (2023). He is a recurring collaborator of Guardians of the Galaxy director James Gunn, appearing in his films Slither (2006), Super (2010) and The Suicide Squad (2021).

Other notable roles include Chick Gandil in Eight Men Out (1988), Frank Bailey in Mississippi Burning (1988), Terry Cruger in Sea of Love (1989), Rowdy Burns in Days of Thunder (1990), Bill Broussard in JFK (1991), Hal Tucker in Cliffhanger (1993), Sherman McMaster in Tombstone (1993), Jared Svenning in Mallrats (1995), Detective Edward Kennesaw in Deceiver (1997), Detective Howard Cheney in The Bone Collector (1999), Detective Jake Riley in Replicant (2001), and Buddy in F9 (2021).