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Sandra Gonzalez
November 16, 2011 AT 12:00 PM EST

The gang on The Big Bang Theory have made no secret that their geeky ways made them easy targets with their school peers, but in an upcoming episode, one of the guys is going to come face-to-face with his past.

EW has learned exclusively that Lance Barber, perhaps best-known for starring alongside Lisa Kudrow in HBO’s The Comeback, will guest star in an upcoming episode as Leonard’s old high school bully. The actor is set to appear in episode 11.

Barbers other credits include appearances on It’s Always Sunny in Philadelphia, Justified, and United States of Tara.

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