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Johnny Galecki

Born Apr 30, 1975

John Mark "Johnny" Galecki is an American actor. He is best known for his roles as David Healy in the ABC sitcom Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter in the hit CBS sitcom The Big Bang Theory.

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Learn about the memorable moments in the evolution of Johnny Galecki.


1975 Birth Born on April 30, 1975.


1987 12 Years Old Galecki made his acting debut in the 1987 CBS miniseries Murder Ordained with JoBeth Williams and future Roseanne co-star John Goodman.
1989 14 Years Old In 1989 Galecki portrayed Rusty Griswold in National Lampoon's Christmas Vacation. … Read More


1997 22 Years Old Galecki was cast in the 1997 summer slasher I Know What You Did Last Summer and the 1998 dark comedy The Opposite of Sex.
2000 25 Years Old In the year 2000, Galecki reunited with Opposite of Sex director Don Roos, who cast him in Bounce. … Read More


2006 31 Years Old 1 More Event
In late 2006/early 2007, Galecki starred in the Broadway play The Little Dog Laughed as Alex, a male prostitute. … Read More
2007 32 Years Old 1 More Event
The play closed on February 18, 2007, with Galecki taking home a 2007 Theater World Award for his performance.
2008 33 Years Old Galecki appeared briefly in the 2008 superhero comedy Hancock, alongside Will Smith and Jason Bateman. … Read More
2011 36 Years Old In July 2011 Galecki played himself on three episodes of Entourage. … Read More
2012 37 Years Old In February 2012, it was revealed that Galecki had been dating actress Kelli Garner since 2011.
Original Authors of this text are noted on http://en.wikipedia.org/wiki/Johnny_Galecki.
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