Johnny Galecki

Johnny Galecki was born on April 30, 1975 in the town of Bree in Belgium while his father, who worked at the U.S. Air Force, was assigned to the country. He currently lives in Los Angeles and is best known for her role as "David" in the comedy "Roseanne," for which he won a Young Artist Award for Best Young Comedian in 1994.

Johnny has also played recurring roles on such series as "My Boys", "Hope and Faith" and "My Name is Earl." In the film credits appear in "Crystal" "Bookies," "Vanilla Sky", "Bounce," "Playing Mona Lisa," "The Opposite of Sex", "I Know What You Did Last Summer", "Suicide Kings "and" National Lampoon's Christmas Vacation. "

Johnny Galecki's Leonard Leakey Hofstadter Simeon, an experimental physicist. Obtained his doctorate at 24 years of age. While much more sociable than Sheldon, like Rajesh and Howard, has never been successful with women, although of the four is the only one who has had girlfriends. Not only is Leakey another geek, but has also had better success with women that the rest. His friends tease him that he will die just like them, but he does not give up and always tried to conquer its neighbor Penny, which received ambiguous responses until finally begin a relationship in the third season to the surprise of his friends.

Leonard is the best friend of Sheldon-he agreed to live with him- is passionate about comics and video games. It is also lactose intolerant and has myopia.