Bio

Renowned American actor John Mark Galecki was born on April 30, 1975, in Belgium. He is best known for his performance as Leonard Hofstadter in the widely popular series The Big Bang Theory (2007- 2019). In this series, he has shared the screen with co-celebrities like Jim Parsons and Kaley Cuoco. He has appeared in movies like Bookies (2003), I Know What you Did Last Summer (1997), Suicide Kings (1997), The Opposite of Sex (1998), Rings (2017), and Prancer (1989). For his performance in The Big Bang Theory, he received a PrimeTime Emmy Nomination. His career took off from the classic sitcom Roseanne (1988). His performance as Rusty Griswold in the film National Lampoon's Christmas Vacation (1989) brought him instant commercial recognition and fame. He won the Satellite Award for Best Actor in 2012 and The TV Land Award for Roseanne in 2008. He has also appeared in renowned films like Playing Mona Lisa(2000), Bounce (2000), Vanilla Sky (2001), and Happy Endings (2005).