Mayim Bialik Celebrates Her Win With 'Big Bang Theory' Co-Stars Jim Parsons & Johnny Galecki at Critics' Choice Awards 2018!

It’s a big night for Mayim Bialik, as well as her Big Bang Theory co-stars Jim Parsons and Johnny Galecki! PHOTOS: Check out the latest pics of Mayim Bialik The 42-year-old actress won the award for Best Supporting Actress in a Comedy Series at the 2018 Critics’ Choice Awards held at The Barker Hangar on