John Christopher Reilly is an American actor. 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 him a Grammy Award nomination and a second Golden Globe Award nomination for the song performed in the film, "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 commercially successful Wreck It Ralph film series (2012– 2018), and appeared in the superhero film Guardians of the Galaxy (2014), as well as Kong: Skull Island (2017). Reilly continued to act in independent films such as Cyrus, We Need to Talk About Kevin, and Carnage (all in 2011), as well as Yorgos Lanthimos's The Lobster (2015), and The Sisters Brothers (2018). In 2018 he starred as the comedian Oliver Hardy in the biopic Stan and Ollie. The role earned him a Golden Globe Award nomination as well as a Critics' Choice Award nomination. In 2020, he created and starred in a Showtime comedy series Moonbase 8. In 2022, he led an ensemble cast for the HBO sports drama series Winning Time: The Rise of the Lakers Dynasty. Reilly performs with his band John Reilly and Friends and worked as a stage actor in True West (2000), for which he was nominated for the Tony Award for Best Actor in a Play.