Before he joined the cast of Young Sheldon, Lance Barber played a completely different character on The Big Bang Theory.

Lance Barber on the TV return of George Cooper Sr. in "Georgie and Mandy's First Marriage" after a fatal heart attack in ...

Barber has appeared on all three 'Big Bang Theory' series Barber joins Jordan ... Barber played the reformed school bully Jimmy Speckerman. In "Young Sheldon," the actor was so committed that ...