Jim Parsons and Mayem Bialek appeared in the finale of the series “Childhood of Sheldon”: the characters have aged a lot (4 photos)
The series "Sheldon's Childhood" tells the backstory of the genius Sheldon Cooper. The final episode stars Jim Parsons and Mayem Bialek. Jim Parsons said reprising his role from The Big Bang Theory for the finale of Childhood Sheldon was the "cutest little coda." 
