Acting
Johnny Galecki is a Belgian-born American actor, best known for his roles as David Healy in Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter in The Big Bang Theory.
2020
2019
2018
2017
2016
2013
2011
2009
2008
2007
2005
2004
2003
2001
2000
