Thomas Edward Sizemore Jr. was an American actor. Born in Detroit, Michigan, he started his career with supporting appearances in Born on the Fourth of July (1989), Lock Up (1989), and Blue Steel (1990). These appearances led to more prominent roles in films like Passenger 57 (1992), True Romance (1993), Striking Distance (1993), Natural Born Killers (1994), Strange Days (1995), Heat (1995), and The Relic (1997).

Born on the Fourth of July is a 1989 American epic biographical anti-war film that is based on the 1976 autobiography of Ron Kovic. Directed by Oliver Stone, and written by Stone and Kovic, it stars Tom Cruise, Kyra Sedgwick, Raymond J. Barry, Jerry Levine, Frank Whaley, and Willem Dafoe. The film depicts the life of Kovic (Cruise) over a 20-year period, detailing his childhood, his military service and paralysis during the Vietnam War, and his transition to anti-war activism. It is the second installment in Stone's trilogy of films about the Vietnam War, following Platoon (1986) and preceding Heaven & Earth (1993).