<Ul> <Li> Christine Baranski as Dr. Beverly Hofstadter </Li> <Li> Laurie Metcalf as Mary Cooper </Li> <Li> Dean Norris as Colonel Richard Williams </Li> <Li> Brian George as Dr. V.M. Koothrappali </Li> <Li> Brian Posehn as Dr. "Bert" Bertram Kibbler </Li> <Li> John Ross Bowie as Dr. Barry Kripke </Li> <Li> Pamela Adlon as Halley Wolowitz (voice only) </Li> <Li> Brian Thomas Smith as Zack Johnson </Li> <Li> Laura Spencer as Emily Sweeney </Li> <Li> Kate Micucci as Lucy </Li> <Li> Alessandra Torresani as Claire </Li> </Ul> <Li> Christine Baranski as Dr. Beverly Hofstadter </Li> <Li> Laurie Metcalf as Mary Cooper </Li> <Li> Dean Norris as Colonel Richard Williams </Li>

The big bang theory season 3 episode 10