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.
The Skystar Tetralogy by J. J. Abrams (2001 - 2020)
Jack Lawless, an 16-year-old, who receives powers from a rare and mystical object called Light Star, now with these powers he has to defend the citizens of his city from threats both outside and inside the planet Earth.