Johnny Galecki
48 years old
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 B...
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National Lampoon's Christmas Vacation
As the holidays approach, Clark Griswold wants to have a perfect family Christmas, so he pesters his wife, Ellen, and children, as he tries to make sure everything is in line, including the tree an...
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