First, Hot Look: Olivia Munn on Chuck Season Premiere

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The guest star heavy fourth season of Chuck gets underway on September 20... in gorgeous fashion.

Olivia Munn comes aboard the NBC series in the role of CIA operative Greta, a role that will actually change throughout the season and later be played by Stacy Keibler and Isaiah Mustafa.

In the premiere pics below, it's clear the Burbank Buy More has recovered from last season's events, thanks to help from the CIA, which will be running the store this fall. Check out a couple photos from "Chuck vs. the Anniversary" and visit our Chuck spoilers section for a more thorough look at season four:

Olivia Munn on Chuck
Munn as Greta

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.


Chuck Quotes

I'm sure we can handle a family... even yours.

Chuck [to Sarah]

Morgan, please don't touch my chest.


Chuck Music

  Song Artist
Wait it out Wait It Out Imogen Heap iTunes
Black and gold Black and Gold Sam Sparro iTunes
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