Gary Sinise, Actor: Forrest Gump. Gary Alan Sinise was born in Blue Island, Illinois, to Mylles S. (Alsip) and Robert L. Sinise, A.C.E., a film editor. He is of Italian (from his paternal grandfather), English, Scottish, Irish, French, German, and Swedish ancestry. His family moved to Highland Park, where he attended high school. He was something of a rebel, playing in bands but ...