John Christopher Reilly (born May 24, 1965) is an American actor, comedian, singer, screenwriter, and producer. He is one of several actors whose career was launched by Brian De Palma.
He has appeared in over fifty films, including Boogie Nights (1997), Magnolia (1999), Chicago (2002), Talladega Nights (2006), Step Brothers (2008), Wreck-It Ralph (2012), and Guardians of the Galaxy (2014). Reilly was nominated for an Academy Award for Best Supporting Actor for his role in Chicago and a Grammy Award for the song "Walk Hard", which he performed in Walk Hard: The Dewey Cox Story. Reilly has starred in the television series Check It Out! with Dr. Steve Brule since 2010.
Reilly currently performs with his band John C. Reilly and Friends and worked as a stage actor in True West (2000), for which he was nominated a Tony Award for Best Actor in a Play.