John Christopher Reilly (born May 24, 1965) is an American actor, comedian, screenwriter, musician, and producer. After his film debut 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).