The Big Bang Theory The Communication Deterioration (Season 8, Episode 21)
TV-PG
TV Episode | 19 min | Comedy, Romance

Primary photo for The Communication Deterioration

The Big Bang Theory

The Communication Deterioration (Season 8, Episode 21)

TV-PG

TV Episode | 19 min | Comedy, Romance

When Raj is asked to create a message on the off chance a NASA mission discovers alien life, the guys fight over what he should do, while Penny contemplates returning to acting.

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Cast	+ Add Cast
13 cast members

Name	Known for
Johnny Galecki Leonard Hofstadter Leonard Hofstadter See fewer	The Big Bang Theory (2007)
Jim Parsons Sheldon Cooper Sheldon Cooper See fewer	The Big Bang Theory (2007)
Kaley Cuoco Penny (as Kaley Cuoco-Sweeting) Penny (as Kaley Cuoco-Sweeting) See fewer	The Big Bang Theory (2007)
Simon Helberg Howard Wolowitz Howard Wolowitz See fewer	Florence Foster Jenkins (2016)
Kunal Nayyar Raj Koothrappali Raj Koothrappali See fewer	The Big Bang Theory (2007)
Mayim Bialik Amy Farrah Fowler Amy Farrah Fowler See fewer	Beaches (1988)
Melissa Rauch Bernadette Rostenkowski Bernadette Rostenkowski See fewer	The Big Bang Theory (2007)
Sara Erikson Gwen Gwen See fewer	The Unicorn (2019)
Kelli Goss Chelsea Chelsea See fewer	Grey's Anatomy (2005)
Phoebe Neidhardt Casting Assistant Casting Assistant See fewer	Silicon Valley (2014)
Jeff Jingle Alien (voice) Alien (voice) See fewer	G.I. Joe: The Rise of Cobra (2009)
Mark Maitre Alien #2 (voice) Alien #2 (voice) See fewer	Pandorum (2009)
Lisbeth Kingsley Audition Girl (uncredited) Audition Girl (uncredited) See fewer	NCIS (2003)