Age: 51
male
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.
Johnny Galecki
1990s
for 1990s in Actors and Actresses Who Play Teenagers By Decade
Suggested by leonardmoney
Sort the actors and actresses who play teenagers into their respective decades.
