Character profile Johnny Gelecki

         Johnny Gelecki is in The Big Bang Theory as Leonard Hofstadter. Leonard has a PhD in experimental physics, and he lives with Sheldon, played by actor Jim Parsons, who only thinks of himself.  Leonard is caring toward his roommate but is sometimes mad at him. They like to read comic books along with their other friends Howard and Raj. Leonard is trying to date Penny their next door neighbour. He finally does and he is happy. Sheldon has two PhD's and a masters degree. That is the character profile of Leonard Hofstadter who is a star in the  Big Bang Theory.