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.
Follow the antics of Sonic, the world's fastest hedgehog. The film will also feature some of the franchise's favorite characters including the evil Dr. Eggman.
