In the early 70's I was on a dive trip in Cozumel, guided by Carl Roessler and Rick Tegler. Rick was an instructor out of Stan's Sports in southern California. He said he was one of the divers in Thunderball. I've checked some of the movie credits to see if he was listed but couldn't find his name. As the clip states, over 60 divers were used in the film so many are not listed.