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BIG BANG THEORY, THE
Air Date: Thursday, April 27, 2017
Time Slot: 8:00 PM-8:31 PM EST on CBS
Episode Title: (#T12.15322) "The Cognition Regeneration"
[NOTE: The following article is a press release issued by the aforementioned network and/or company. Any errors, typos, etc. are attributed to the original author. The release is reproduced solely for the dissemination of the enclosed information.]

LEONARD ISN'T THRILLED WHEN PENNY CONSIDERS TAKING A NEW JOB OFFERED BY HER EX-BOYFRIEND, ON "THE BIG BANG THEORY," THURSDAY, APRIL 27

Brian Thomas Smith Returns as Zack

"The Cognition Regeneration" - Leonard isn't thrilled when Penny considers taking a new job offered by her ex-boyfriend, Zack (Brian Thomas Smith)
, on THE BIG BANG THEORY, Thursday, April 27 (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)

GUEST CAST:

Brian Thomas Smith (Zack)

STORY BY: Steve Holland, Tara Hernandez, Jeremy Howe

TELEPLAY BY: Dave Goetsch, Eric Kaplan, Jim Reynolds

DIRECTED BY: Mark Cendrowski