Leonard Hofstadter is an experimental physicist originally from New Jersey who shares an apartment with his friend and colleague Sheldon Cooper. They are the main characters in the sitcom The Big Bang Theory produced by Chuck Lorre. Lorre's fourth show was Two and a Half Men which focuses on the Harper brothers portrayed by Charlie Sheen and Jon Cryer. Charlie Sheen's real name is Carlos Irwin Estevez and his father is Martin Sheen who played Ben Parker in The Amazing Spider Man directed by Marc Webb, with Andrew Garfield as the lead actor. Joseph Gordon Levitt starred in 500 Days of Summer, Webb's directorial debut.