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Johnny Galecki

Acting

Johnny Galecki

Born 1975-04-30 Bree, Belgium

Biography

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.

Selected filmography

Movies and TV shows

Popular acting credits and appearances.