Kelly rose to stardom when he appeared alongside Bruce Lee and John Saxon in the 1973 Warner Bros. martial arts film. From there he went on to star in a handful of blaxploitation films, such as Three the Hard Way, Black Belt Jones, and Black Samurai. He seldom worked in film after the early 80s and went on to become a professional tennis coach in Southern California.
Though his appearances in film and television were seldom, he was still adored by fans of martial arts fans around the world.
From one of my favorite moments of his as Williams in Enter the Dragon...
Han: We are all ready to win, just as we are born knowing only life. It is defeat that you must learn to prepare for.
Williams: I don't waste my time with it. When it comes, I won't even notice.
Han: Oh? How so?
Williams: I'll be too busy looking gooood.