Kunal Nayyar stars as Rajesh Koothrappali, an Astrophysicist that works with Sheldon and Leonard at Caltech. He is best friends with Wolowitz and lives in an apartment by himself.  Rajeesh is from India and communicates with his parents back at home via video conferencing software.

Rajeesh is a bit of a celebrity after he was named in People's "30 Under 30."  Rajeesh has major social anxiety and can only talk to women under the influence of alcohol.

Rajesh "Raj" Koothrappali Quotes

Raj: Okay, here's another one: if a zombie bites a vampire, and the vampire bites a human, does the human become a vampire or a zombie? Or, a zompire?

Tell her her eyes shimmer like opalescent lilies in the lake of the palace of the celestial maidens.

Raj

TBBT Quotes

Sheldon: Why are you crying?
Penny: Because I'm stupid!
Sheldon: Well that's no reason to cry; one cries because one is sad. For example, I cry because others are stupid and it makes me sad.

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.