List of famous people named Jason, along with photos. How many celebrities named Jason can you think of? The famous Jasons below have many different professions, as this list includes notable actors named Jason, athletes named Jason, and even political figures named Jason. Did we forget your favorite famous person whose name is Jason? Add them to the list.If you're a fan of Seinfeld, when you hear the name Jason you might instantly think of the brilliant Jason Alexander, who played George Costanza on the 90s comedy series. Jason Segal is another funny actor who starred in a massive comedy show (How I Met Your Mother). If sports is your thing then you'll definitely recognize Jason Kidd, one of the greatest NBA players of all time.