Random Couples in Real Life Who Played Siblings (16 items)

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  (#1) Michael C. Hall

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  Michael C. Hall and Jennifer Carpenter started dating after playing brother and sister on the Showtime hit Dexter. As Hollywood Life explained, they tied the knot in 2008 and then divorced in 2011 while the show was still filming. 
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  (#2) Matthew Broderick

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  Matthew Broderick and Jennifer Grey played brother and sister in Paramount Pictures' Ferris Bueller's Day Off. Grey's Jeanie Bueller was all about trying to get her older brother caught for his schemes. After filming, Broderick and Grey were engaged for a while, but the happy ending was "ruined" following the couple's involvement in a fatal accident while vacationing in Ireland. 
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  (#3) Selena Gomez

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  Selena Gomez and David Henrie played brother and sister wizards on Disney Channel's Wizards of Waverly Place. Seems the show cast a "belated spell" on the two. According to IBTimes, they were first linked in 2014 after Gomez had split up from Justin Bieber. 
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  (#4) Lauren Graham

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  Lauren Graham and Peter Krause, co-stars on NBC's Parenthood, had been dating for nearly five years when Ellen Degeneres brought up the question of marriage on her show in 2014. "I don't know. We are very happy as we are and I never have a good question for this answer," Graham responded. Krause played series lead Adam Braverman and Lauren Graham portrayed his sister, Sarah. 
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  (#5) Chris Pratt

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  According to E! Online, Chris Pratt and Emily Vancamp dated while playing brother and sister on the WB's Everwood. They broke up in 2007.
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  (#6) Maureen McCormick

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  Okay, so maybe they weren't biologically related on The Brady Bunch, but Marcia Brady (Maureen McCormick) and Greg Brady (Barry Williams) dated in real life, according to CBS News. As Maureen McCormick described in her memoir, Here's the Story: Surviving Marcia Brady and Finding My True Voice, "We couldn't hold back any longer. It was our first kiss, and it was long, passionate and deep... though as we continued to kiss and press against each other so closely... a part of me - a tiny part, admittedly - said to myself, `Oh my God! I'm kissing my brother. What am I doing?'"
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  (#7) Evan Rachel Wood

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  Evan Rachel Wood played Shane West's little sister on ABC's Once and Again. The show ended in 2002, but the two didn't start dating until the summer of 2009. The two were spotted when the then-21-year-old actress stepped out with West to celebrate his 31st birthday. 
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  (#8) Katherine Heigl

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  Katherine Heigl and Jason Behr played orphaned brother and sister aliens disguised as a New Mexico high school students on the WB's Roswell. But their real-life chemistry was actually out of this world. They dated off-screen while filming.
  
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  (#9) Shannon Doherty

  Brenda and Brandon Walsh played twins uprooted from Minnesota and planted smack dab in the middle of LA on Beverly Hills, 90210. Jason Priestley, who played Brandon, admitted during a Howard Stern interview that he and Shannen Doherty (who played his twin sister Brenda) had dated during the first season. 
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  (#10) Ian Somerhalder

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  Boone (Ian Somerhalder) and Shannon (Maggie Grace) played step-siblings with a very... uh... unique relationship on ABC's Lost. According to Us Weekly, the sparks between the two also flew off-screen and they dated briefly in 2006. 
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  (#11) Emily VanCamp

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  Sounds like the producers at ABC's Brothers & Sisters knew how to turn off-screen chemistry into on-screen magic. As E! News explained, the producers changed the trajectory of the show so that Justin (played by Dave Annable) was no longer related to sibling Rebecca (Emily Van Camp). That way, the actors could be hooked up onscreen, thus capitalizing on the sparks that already existed. 
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  (#12) Jamie Lynn Sigler

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  Jamie-Lynn Sigler and Robert Iler played siblings Meadow and A.J. on the HBO show The Sopranos. While the two were spotted getting close in Vegas during the show's final season in 2007, they denied any romance. During an interview with Today, when asked about the possible romance, Iler shook his head and Sigler giggled and then said, “That’s why we can be best friends."
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  (#13) Amy Poehler

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  Amy Poehler and Will Arnett were married when they played brother and sister figure skating champions in Dreamworks' film Blades of Glory. When asked during an interview with Collider if their on-screen kiss was their idea, Poehler responded with: "Those were doubles. Those were kiss doubles... We just keep it for at home. But our doubles did a really good job." The two have since divorced. 
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  (#14) Dean-Charles Chapman

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  Dean-Charles Chapman and Nell Tiger Free were reportedly dating in 2015. They may not be related in real life, but the two play Tommen and Myrcella on HBO's Game of Thrones. And we all know the Lannisters have some incestuous ways...
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  (#15) David Cassidy

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  Susan Dey and David Cassidy played singing and performing siblings Laurie and Keith Partridge on ABC's The Partridge Family. Cassidy revealed in his autobiography, C’Mon Get Happy, that "Susan lacked the slutty aspect of a female that I always found so attractive.'' The two were rumored to have dated. In Shirley Jones' memoir, she explained that Dey "had a great big crush on David, and he didn’t reciprocate her feelings.”
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  (#16) Nikki Reed and Robert Pattinson

  According to Daily Mail, Nikki Reed and Robert Pattinson reportedly had a "short-lived fling." While the Cullen kids from Twilight were all adopted, that doesn't change the fact that Edward and Rosalie were basically brother and sister.

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