
Here it is:
LEONARD AND PENNY DISCOVER A NEW SPARK IN THEIR RELATIONSHIP AND THE GANG CELEBRATES HALLOWEEN, ON “THE BIG BANG THEORY,” THURSDAY, OCT. 25
Astronaut Buzz Aldrin Makes a Cameo Appearance as Himself
“The Holographic Excitation” – The gang celebrates Halloween at Stuart’s comic book store. Meanwhile, Leonard seduces Penny with science, on THE BIG BANG THEORY, Thursday, Oct. 25 (8:00 – 8:31 PM, ET/PT) on the CBS Television Network. Astronaut Buzz Aldrin makes a cameo appearance as himself.
CAST: Johnny Galecki (Leonard), Jim Parsons (Sheldon), Kaley Cuoco (Penny), Simon Helberg (Wolowitz), Kunal Nayyar (Koothrappali), Melissa Rauch (Bernadette), Mayim Bialik (Amy), Kevin Sussman (Stuart)
GUEST CAST: Buzz Aldrin (Himself), Janelle Marra (Claire)
STORY BY: Chuck Lorre, Eric Kaplan and Jeremy Howe
TELEPLAY BY: Steven Molaro, Steve Holland and Maria Ferrari
DIRECTED BY: Mark Cendrowski