Young Sheldon's Missy Cooper's, portrayed by actress Raegan Revord, had to remain with virtually the same look until mid-way ...

Riki Lindhome's Ramona Nowitzki had an 8-season gap between appearances on The Big Bang Theory, but bringing her back was essential for Sheldon Cooper's growth.

From playing the fun aunt, Jackie Harris, in the '80s and '90s sitcom Roseanne to tough, hardworking mom Marion McPherson in ...