Those Castle fans that were worried that newcomer Haley Shipton (new series regular Toks Olagundoye) would somehow come between Castle (Nathan Fillion) and Beckett (Stana Katic) had it all wrong.

That's because somebody else has their eye on Haley: Esposito (Jon Huertas)! "She is pretty cute, and I think Esposito has noticed that for sure," Huertas tells TVGuide.com. "He's admiring the scenery right now."Does that mean that Esposito might have some awkward interoffice moments with on-again-off-again love interest Lanie (Tamala Jones)? "Lanie hasn't necessarily noticed, but ... a triangle is a huge possibility and something I think we're definitely going to see this season," Huertas says.

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Although executive producer Terence Paul Winter wouldn't commit to pairing Haley and Espo — "we're open to see where the natural progression of these characters go, but there is an obvious flirtation between the two that's come up in a couple episodes," he says — moving Esposito away from the relationship with Lanie seems like it's in the cards.

"There's always a chance that might come back, but we've been down that road a few times," Winter says. "So it's just a matter of, 'What's the honest version of that story?' so we're not just throwing them together to throw them together. They've had a beginning, middle and end, so what's the next step for them? Is there a next step?"

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