Zoe Perry. Actress: Young Sheldon. Zoe Perry is an American actress. She is best known for portraying Mary Cooper in Young Sheldon.Her first television role was two appearances as the character Jackie Harris (as seen in flashback) on the ABC sitcom Roseanne, the character portrayed by her mother.In 2017 she was cast as a younger version of Sheldon Cooper's mother Mary on Young Sheldon, a spin-off of the CBS sitcom...