Wallace Shawn (The Princess Bride, Toy Story) returns as Dr. John Sturgis.
A Research Study and Czechoslovakian Wedding Pastries - Dr. Sturgis (Wallace Shawn) recommends Sheldon and Missy for a university research study on twins, and Mary is unhappy when the test results go to Sheldon's head, on YOUNG SHELDON, Thursday, Oct. 18 (8:31-9:01 PM, ET/PT) on the CBS Television Network.
When Dr. Sturgis introduces Sheldon and Missy to university researchers studying twins, Sheldon's pleasure at having his intellect recognised is tested after they look at emotional intelligence. Meanwhile, George and Mary reconsider their parenting style when Missy's results surprise them.