Guest Star: Ken Lerner

• 

  The Re-Entry Minimization
  Season 6, Episode 4 - Aired October 18, 2012

  When Howard returns from space, he is disappointed by his welcome home after Bernadette gets sick and all his friends are busy. Meanwhile, it's Girls vs. Boys when Amy and Penny take on Sheldon and Leonard on game night.

  Appeared as Dr. Schneider