'The Big Bang Theory': Meet Leonard's high school bully

Ever wonder why Leonard (Johnny Galecki) is the way he is? Well, we've met his mother in the past, so that explains part of his problems. And now we'll get to meet his high school bully.

EW is reporting that Lance Barber is slated to play the bane of Leonard's teen existence on an upcoming episode of "The Big Bang Theory." Barber has had past stints on "It's Always Sunny in Philadelphia" and "The Comeback."

It's been a tough year for Leonard, beginning with Raj (Kunal Nayyar) hooking up with his ex-girlfriend Penny (Kaley Cuoco). And it only got worse when he found out that his girlfrined Priya had cheated on him. Hopefully he's able to handle the stress of an unfriendly high school face.

The episode is slated to air Dec. 8 at 8 p.m. ET.