1st official look at Summer Glau's Greta on Chuck (6 pics)

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Dec 14, 2012, 4:31 PM EST

When we heard Summer Glau was going to be on NBC's Chuck this season as one of the Gretas, we were excited about seeing our favorite terminator on the series. About a month ago, we got our first, unofficial look at the actress, but now we finally have four OFFICIAL pics to tide us over until the series returns Nov. 15.

Titled "Chuck vs. the Fear of Death," the episode sees some of the Buy Morons (as Zap2It calls them) finally realizing something's up with the frequent personnel changes at the Buy More. Morgan (Joshua Gomez) and Casey (Adam Baldwin) will have a hard time trying to keep Greta's CIA cover intact with the likes of Jeff (Scott Krinsky) and Lester (Vik Sahay) sniffing around.

Glau (who's a staple of sci-fi after starring on Firefly and Terminator: The Sarah Connor Chronicles and appearing on Angel and The Big Bang Theory, just to name a few) is the fourth actor to tackle the role of the code-named CIA operative Greta. She follows Olivia Munn, Isaiah "Old Spice guy" Mustafa and Stacy Keibler. But let's face it, she's the Greta we really wanted to see.

Apparently, Glau's Greta will have a bit more interaction with the Buy More crew than the others before her had. So we can (almost) rest assured this will be more than just a glorified cameo appearance—which can only be a good thing, right?

The episode will also see Chuck (Zachary Levi) trying to "compensate for his newly Intersect-less self by taking on a dangerous mission with an off-center agent played by Daily Show alum Rob Riggle."

So what do you think of the pics? Looking forward to "Chuck vs. the Fear of Death"?

(via Zap2It and spoilertv)