Birthday: April 30, 1975
Birth Place: Bree, Belgium
VegSource: teamcoco.com/video/johnny-galecki-interview-part-2-010512
John Mark "Johnny" Galecki is an American actor best known for his role as Dr. Leonard Hofstadter in The Big Bang Theory since 2007 and as David Healy in Roseanne from 1992–97.
