American actor
John Mark Galecki is an American actor. He is known for playing Leonard Hofstadter in the CBS sitcom The Big Bang Theory since 2007 and David Healy in the ABC sitcom Roseanne from 1992 to 1997 and briefly reprised the role during its 2018 revival. Galecki also appeared in the films National Lampoon's Christmas Vacation (1989), Prancer (1989), Suicide Kings (1997), I Know What You Did Last Summer (1997), Bookies (2003), In Time (2011), and Rings (2017).
Read more onThere are 23 more famous people who are born on the same day as Johnny Galecki. We're showing the top 4 most popular below but you can see the rest here.
See more birthdays on 30th AprilThere are 171 more celebrities who are age 49 like Johnny Galecki. We're showing the top 4 most popular below but you can see the rest here.