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.

CHEAT TWEET: Oh, baby! Penny’s ex-boyfriend, Zack, learns he is infertile and asks Leonard for his help to have a baby with his new wife on @BigBangTheory Thursday 1/10 8pm. #CBS #BrianThomasSmith returns as Zack http://bit.ly/2CpZNAL

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

Photos are available at: http://cbspressexpress.com

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

* * *

Press Contacts:

Lori DelliColli

603-824-6300

ladellicolli@cbs.com

Tracey Raab

818-655-1590

tracey.raab@cbs.com

Photo Contacts:

Timothy Kuratek

818-655-1548

tkuratek@cbs.com

Kathleen Tanji

818-655-1543

kathleen.tanji@cbs.com