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.
This will be a casting board for a live-action Avengers show that will be story-driven and has the feeling of it being an animated show turned live-action. This board will have all characters that will be appearing in the show, some popular and some that people don't even know.
