Johnny Galecki's Chicago Nickname Was "Bitchfingers" - CONAN on TBS
The Real Reason Kaley Cuoco And Johnny Galecki Split
Mayim Bialik & Johnny Galecki Remember Their Teenage Kiss - CONAN on TBS
Johnny Galecki Threw Up Before His First Big Concert
Johnny Galecki (The big bang theory) Cars, House, Income, Net worth
John Mark "Johnny" Galecki is a Belgian-born American actor. He is best known for his role as Leonard Hofstadter in the sitcom The Big Bang Theory since 2007 and as David Healy in the sitcom Roseanne from 1992 to 1997. He also appeared in the films National Lampoon's Christmas Vacation, Suicide Kings, I Know What You Did Last Summer, Bookies, Hancock, and In Time.