John Christopher Reilly (born May 24, 1965) is an American actor, comedian, musician, producer, and writer. After his film debut in Casualties of War (1989), he gained exposure through his supporting roles in Days of Thunder (1990), What's Eating Gilbert Grape (1993) and The River Wild (1994). He also starred in Paul Thomas Anderson's films Hard Eight (1996), Boogie Nights (1997) and Magnolia (1999), as well as Terrence Malick's The Thin Red Line (1998). For his performance in Chicago (2002), Reilly was nominated for the Academy Award for Best Supporting Actor and the corresponding Golden Globe Award. He worked with director Martin Scorsese on both Gangs of New York (2002) and The Aviator (2004).
In 2007, he starred in the comedy Walk Hard: The Dewey Cox Story, garnering a Grammy Award nomination and a second Golden Globe Award nomination for the film's title song, "Walk Hard". Reilly starred with Will Ferrell in the Adam McKay-directed comedies Talladega Nights: The Ballad of Ricky Bobby (2006) and Step Brothers (2008). He voiced the title character in the Wreck It Ralph film series (2012–2018), and appeared in the superhero film Guardians of the Galaxy (2014) and Kong: Skull Island (2017). Reilly continued to act in independent films such as Cyrus, We Need to Talk About...More about John C. Reilly...