Raegan Revord had some strict rules to follow while playing Missy Cooper on "Young Sheldon," and she wasn't allowed any input over her character's style -- at least not during the show's early ...

Even if the name Raegan Revord doesn't ring any bells, the hit CBS show "Young Sheldon" likely does. Fans of the spinoff series know Revord for her role as Missy Cooper, the snarky fraternal twin ...