Thomas Edward "Tom" Sizemore, Jr. (born November 29, 1961) is an American film and television actor and producer. He is known for his roles in films such as Saving Private Ryan, Strange Days, Pearl Harbor, Heat and Black Hawk Down. Sizemore is also known for his supporting roles in well known films such as The Relic, True Romance, Natural Born Killers, Wyatt Earp and Devil in a Blue Dress.
Sizemore was born in Detroit, Michigan. His mother, Judith (née Schannault), was a member of the city of Detroit ombudsman staff, and his father, Thomas Edward Sizemore, Sr., now retired, was a lawyer and philosophy professor. He has three brothers, Charlie, Aaron and Paul, who is also an actor. Sizemore attended Michigan State University for one year, as well as Wayne State University. He earned a Master's degree in theatre from Temple University in 1986. He subsequently moved to New York City to pursue an acting career.
One of Sizemore's earliest film appearances occurred in Oliver Stone's Born on the Fourth of July in 1989, followed by roles in Lock Up (1989), Harley Davidson and the Marlboro Man (1991), True Romance (1993), Natural Born Killers (1994), and Strange Days (1995). Sizemore also starred in the independent drama film Love Is Like That (1993) with actress and model Pamela Gidley. He had a supporting role in Kevin Costner's Wyatt Earp as Bat Masterson.