6Fred Williamson
Source: digitaltrends.com
Fred Williamson aka “The Hammer” was a very successful professional defensive back in the American Football League (AFL) in the ‘60s, which was just before the NFL/AFL merger. Sometime after the merger in the ’70s, he turned to acting and appeared in a number of films with his colleague footballer Jim Brown over the decades to follow, including Three the Hard Way (1974), One Down (1982), and Original Gangsta (1996). Besides movies, he made several appearances on TV in the Star Trek where he played a role of Anka in the 1969 episode titled The Cloud Minders.