Young Sheldon · Season 2 · Episode 5
A Research Study and Czechoslovakian Wedding Pastries
When Dr. Sturgis recommends Sheldon and Missy for a university research study on twins, Mary is unhappy when the test results go to Sheldon's head.
Guest stars
Amy Farrington
Sandra Thorpe
Wallace Langham
Edward Pilson
Madison Wulf
Five-Year-Old Missy
Parker Dailey
Five-Year-Old Sheldon
Wallace Shawn
John Sturgis