Life ‘Big Bang Theory’ cast then and now: Johnny Galecki, Kaley Cuoco, Jim Parsons, Mayim Bialik and more May 16, 2019August 24, 2020USA TODAYComments Off on ‘Big Bang Theory’ cast then and now: Johnny Galecki, Kaley Cuoco, Jim Parsons, Mayim Bialik and more "The Big Bang Theory" said farewell on May 16 after 12 seasons. We're looking back at each cast member's transformation over the years.
