Jim Parsons (left) was a really sweet kid when he was young! This is him as a little boy with his mother and little brother.
Here is the ever famous Jim Parsons, also known as starring character "Sheldon Cooper" from The Big Bang Theory with his husband Todd. He really grew up to be a handsome man.
The Big Bang Theory is one of the most successful and popular sitcoms of all time and this is due, in part, to the actors!
Carry on reading to see what your favorite The Big Bang Theory actors looked like as children...