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Jordana Brewster, Zachary Levi, Yvonne Strahovski

Jeffrey Mayer/Getty Images, John Shearer/Getty Images, AP Photo/Dan Steinberg

"I have to work with these dogs. Utter dogs!"

This is what Chuck star Zachary Levi tells me about having to show up to work every day and act out romantic tension with Yvonne Strahovski...and now Jordana Brewster.

"It's horrible," he vented during my latest visit to the Chuck set. "You’d think that they’d throw me a bone somewhere along the way."

And just in case you were dropped on your head as a small child and/or need some serious prescription-strength glasses, we should tell you...

Zachary is obviously 100 percent kidding. Clearly these two beauties (Jordana and Yvonne) do not make for a bad day's work, and Levi knows he has it good. "They're both lovely, inside and out, and I love working with them."

But the bigger question is: Will the fans love Brewster?

She joins the show on Monday night, when Zach is thrown into a love triangle with Yvonne (his new CIA crush, Sarah) and Jordana (Jill, the college sweetheart who broke his heart).

So who'll win over Chuck? Fans have been rooting for Chuck and Sarah for a long time now, but old feelings run deep. (Though Jill is totally hiding something from the Chuckster. Something big. Guesses?)

Check out the sneak peeks below to see if you can figure it out, and then be sure to watch Chuck Monday night at 8 on NBC.