As we inch closer to the season three premiere of Chuck (this Sunday on NBC!!!), we've heard a lot from Zachary Levi and Josh Schwartz.

But we haven't forgotten about the most beautiful reason many people tune in to this show: Yvonne Strahovski.

The gorgeous actress spoke with Fancast this week and dished on third season guest stars and more. A few excerpts are below:

On Brandon Routh as Shaw: "One of the things that’s similar is they’re on the same page at the professional level, as far as being spies, whereas Chuck is not as capable of protecting himself. Also, sometimes Sarah feels more comfortable talking to Shaw. Things come about as Season 3 goes along where you actually see some other similarities."

On what Chuck's brother-in-law knows: "Obviously they’re always going to be wary that somebody from outside of the spy world knows, and that goes hand-in-hand with protecting Chuck and his family. The more people that know, the more people that are at risk."

On Sarah's past: "Yeah, you’ll find out some pretty full-on stuff, actually. I don’t know how [many Chuck spoilers] I can reveal… but you kind of learn about her beginning phases – how she came to be the spy she is today, how she got into that world."

TV Fanatic will cover each Chuck episode in depth, with photos, quotes, recaps and reviews. We hope you join us each week in analyzing and celebrating this great show!

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