There has been a lot written over the years about casting for The Big Bang Theory. We know the original roomie across the hall was replaced by Kaley Cuoco’s Penny after the pilot was made. In fact, Chuck Lorre’s called the pilot “a mess” in the past and admitted they didn’t know what they were doing, but there was one now a-lister the show definitely didn’t think would be a good fit due to her age at the time the pilot was coming together.
Who was that a-lister? Brie Larson. And she wasn't the only major name to try out for the role either.
