The Big Bang Theory 1/10 on CBS

PENNY’S EX-BOYFRIEND, ZACK, ASKS LEONARD FOR A HUGE FAVOR, ON “THE BIG BANG THEORY,” THURSDAY, JAN. 10

Brian Thomas Smith Returns as Penny’s Ex-Boyfriend, Zack

“The Propagation Proposition” – Penny’s ex-boyfriend, Zack (Brian Thomas Smith), and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, Koothrappali attempts to mend things with his ex-fiancée, Anu (Rait Gupta), on THE BIG BANG THEORY, Thursday, Jan. 10 (8:00-8:31 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

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

RECURRING CAST:

Brian George	(Dr. Koothrappali)
Brian Thomas Smith	(Zack)
Rati Gupta	(Anu)
Lindsey Kraft	(Marissa)

GUEST CAST:

Shay Ali	(Greg)
Chip Chinery	(Bob)

STORY BY: Chuck Lorre, Steve Holland, Jeremy Howe 

TELEPLAY BY: Maria Ferrari, Dave Goetsch, Eric Kaplan

DIRECTED BY: Mark Cendrowski

GENRE: Comedy

Official CBS website: http://www.cbs.com/big_bang_theory

Facebook: https://www.facebook.com/TheBigBangTheory

Twitter: @bigbangtheory

Instagram: @BigBangTheory_CBS

CBS Twitter: http://twitter.com/CBS 

Cast on Twitter:

Simon Helberg	@simonhelberg
Kunal Nayyar	@kunalnayyar
Mayim Bialik	@missmayim
Melissa Rauch	@melissarauch

Cast on Instagram:

Johnny Galecki	@sanctionedjohnnygalecki
Jim Parsons	@therealjimparsons
Kaley Cuoco	@kaleycuoco
Kunal Nayyar	@kunalkarmanayyar
Mayim Bialik	@missmayim
Melissa Rauch	@themelissarauch