Courteney Cox Dating 'Cougar Town' Ex Brian Van Holt - And We're Weirded Out.

Sorry, Grayson: Apparently, Cougar Town co-stars Courteney Cox and Brian Van Holt, who play exes on the show, are dating in real life. This is weird, because their characters are more like brother and sister than ex-husband and -wife. But Cox and Van Holt are not the first TV stars to make us feel uncomfortable with their off-screen relationship — for more on them and four others, read on.

5 TV Costars Whose Real-Life Relationships Creep Us Out

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Sorry, Grayson: Apparently, Cougar Town co-stars Courteney Cox and Brian Van Holt, who play exes on the show, are dating in real life. This is weird, because their characters are more like brother and sister than ex-husband and -wife. But Cox and Van Holt are not the first TV stars to make us feel uncomfortable with their off-screen relationship — for more on them and four others, read on.

Courteney Cox and Brian Van Holt ('Cougar Town')

The Cougar Town stars have apparently been seriously dating for six months, after being linked on and off ever since Cox's 2010 split from David Arquette. While we're happy for them and all, it creeps us out that Jules and Bobby Cobb are together in real life. On the show, they play exes, but their jokey, loving relationship is more reminiscent of siblings than former spouses. The thought that the actors are actually dating only makes us want to reach for Big Carl. Image: TBS

Michael C. Hall and Jennifer Carpenter ('Dexter')

Hall, who plays lead character Dexter, eloped with Carpenter, who plays the serial killer's adoptive sister, Debra, in 2008. They divorced only two years later, but it was more than enough time for us to feel sufficiently weird about the (legal!) TV incest. Image: Showtime

Hayden Panettiere and Milo Ventimiglia ('Heroes')

Super-healing cheerleader Claire Bennet and power-mimicing nurse Peter Petrelli may have played niece and uncle on the show, but that didn't stop their real-life portrayers from dating for over a year. Image: NBC

Lauren Graham and Peter Krause (Parenthood)

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On Parenthood, Sarah (Graham) may be struggling trying to juggle Hank (Ray Romano) and Mark (Jason Ritter), but in reality, she's in a stable, happy relationship — with her own (TV) brother. Graham has been dating Krause, who plays eldest Braverman sibling Adam, for three years.

Barry Williams and Florence Henderson ('The Brady Bunch')

You didn't think we'd leave this famous pair out, did you? For years, the rumor has been that Williams, who played teenage Greg Brady, dated Henderson, his TV mom, in real life. Ew. Thankfully, Henderson cleared the air in 2011, saying that while Williams once had a crush on her, that was the extent of their relationship. Still, ew. Image: ABC