Should we start calling it "Kastle"?

"ET" visited the set of "Castle" to talk with its People's Choice-winning star Nathan Fillion and former "One Tree Hill" actress Hilarie Burton about the Jan. 23 episode entitled, "An Embarrassment of Bitches."

On the episode, Burton plays Kay Cappuccio, a reality TV character inspired by the infamous Kim Kardashian.

"I'm the one guy who lives in a cave and doesn't actually follow the Kardashians," Fillion admitted to "ET." But, he added, "I think they're lovely people … We're not trying to hurt anybody's feelings."

Burton told "ET" that she's excited to step out of her typical role. "I don't think I've ever played a 'hot chick' before," she explained. "I always play the quirky friend or the really angry girl."

Find out more about the new episode from Fillion and Burton at ET.

"Castle" airs Mondays at 10 p.m. EST on ABC.