The towering former American football star, who played Moses Hightower in the film franchise, was found dead at his home in Baldwin Hills, Los Angeles on Wednesday (03Aug11).
Before he became a film star, Smith played for the Oakland Raiders, Houston Oilers and Baltimore Colts, with whom he won a Super Bowl.
After walking away from his sports career in the late 1970s, he found success on TV in series like Good Times, Charlie's Angels and Wonder Woman. He also landed the lead role of Lyman 'Bubba' Kelsey in 1984's Blue Thunder.
He was inducted into the College Football Hall of Fame in 1988 and Michigan State retired his jersey in 2006.
Police had not determined a cause of death by press time, but the Los Angeles Times reports Smith died of natural causes. Officials do not suspect foul play.