Guest Star: Kelli Goss
The Communication Deterioration
Season 8, Episode 21 - Aired April 16, 2015
When Raj is giving the job of crafting a message for NASA in case a mission ever discovers alien life, the guys offer to help him work on the project. When Howard and Sheldon try to take over, Raj chooses to work on the project with Leonard instead. Meanwhile, Penny must decide whether to audition for a movie or instead focus on her well paid pharmaceutical sales job.
Appeared as Chelsea