Worked as a waiter in the Transit Authority dining room on the 44th floor of the World Trade Center for three years.
Starred in regional theater before breaking into movies.
Gained 40 pounds to play John Gotti in Witness to the Mob (1998).
Provided the voice of Sonny Forelli in the video game Grand Theft Auto.
Has freely admitted his past addiction to drugs and credits friend and Heat costar Robert De Niro with getting him into rehab.
Appeared on the shows Celebrity Rehab With Dr. Drew and Sober House With Dr. Drew in 2010; credits Dr. Drew Pinsky and drug counselor Bob Forrest with saving his life.
Hobbies include playing intramural football, drawing and reading.
2000, Golden Globe — Best Performance by an Actor in a Miniseries or Motion Picture Made for Television: Nominee
1998, Screen Actors Guild Awards — Outstanding Performance by a Cast in a Motion Picture: Nominee
Heidi Fleiss — Ex-significant Other
Maeve Quinlan — Ex-wife
Jagger Sizemore — Son
Judith Sizemore — Mother
Paul Sizemore — Brother
Thomas Sizemore — Father
Jayden Sizemore — Son
Janelle McIntire — Ex-significant Other
Attended Michigan State University, East Lansing, Michigan, United States; Wayne State university, Detroit, Michigan, United States (BFA in Theater); Temple University, Philadelphia, Pennsylvania, United States (MFA in Theater, 1986)