WITH AMY OUT ON A DATE WITH A MYSTERY MAN, SHELDON ENLISTS THE HELP OF WOLOWITZ AND KOOTHRAPPALI TO FIND A NEW GIRLFRIEND, ON "THE BIG BANG THEORY," THURSDAY, NOV. 12

Stephen Merchant Guest Stars as the Mystery Man, Dave

Analeigh Tipton Guest Stars as Vanessa

"The Mystery Date Observation" - Sheldon, Wolowitz and Koothrappali post an online advertisement to find Sheldon a new girlfriend. Also, when Amy is coy with details about a guy she is dating, Penny and Bernadette decide to spy, on THE BIG BANG THEORY, Thursday, Nov. 12 (8:00-8:31 PM, ET/PT), on the CBS Television Network. Stephen Merchant guest stars as the mystery man, Dave, and Analeigh Tipton guest stars as Vanessa.

REGULAR CAST

Johnny Galecki (Leonard)
Jim Parsons (Sheldon)
Kaley Cuoco (Penny)
Simon Helberg (Wolowitz)
Kunal Nayyar (Koothrappali)
Mayim Bialik (Amy)
Melissa Rauch (Bernadette)

GUEST CAST:

Stephen Merchant (Dave)
Analeigh Tipton (Vanessa)

WRITTEN BY: Steven Molaro, Eric Kaplan and Jim Reynolds

TELEPLAY BY: Chuck Lorre, Steve Holland and Tara Hernandez

DIRECTED BY: Mark Cendrowski