Aired Friday June 14, 5:30pm - 6:00pmon E4

The Big Bang Theory

Series 4 Episode 14: The Thespian Catalyst

Sheldon agrees to take part in a short lecture series at the university but is unnerved by the students' apparent dislike of him. On Amy's advice, he asks Penny to give him acting lessons so he can learn to engage his audience better. Koothrappali, meanwhile, fantasises about his best friend's girlfriend.

Original air date
Cast and crew
  • Mark CendrowskiDirector
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRaj Koothrappali
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