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Anna Kendrick
The actress thinks the show is "Pitch Perfect," especially when producers sent her a commemorative wooden chest
Also read: Anna Kendrick Jams to J. Lo's 'Booty' in 'Lip Sync Battle' Trailer (Video)

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Stephen King
The master of horror is a big fan of the the show, as evidenced by a spoiler-ific tweet he sent out in 2014
Also read: Sarah Gadon Joins James Franco in Hulu’s Stephen King Adaptation '11/22/63'

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Sarah Hyland
The "Modern Family" actress is not a fan of the diabolical Tywin Lannister, patriarch of the Lannister family.
Also read: 'Modern Family' Boss on Episode Playing Out Entirely on Apple MacBook, FaceTime: It's How Families Communicate

Comedy Central
"Workaholics"
The Comedy Central stars are such big fans they even auditioned for Season 4 back in 2014
Also read: 'Workaholics' Vet Seth Rogen and Zac Efron as Potential Cubicle Mates (Video)

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Zachary Levi
The former "Chuck" star admitted the show has a much bigger impact on him than even he realized
Also read: 'Heroes Reborn' Teaser Features Jack Coleman Return, Zachary Levi Debut

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Joe Jonas
The middle Jonas Brother was just as shocked about the Red Wedding as we all were
Also read: Inside Nick Jonas' Career Crossover: How He Became the Beyonce of Disney’s Boy Band

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Zach Braff
The "Scrubs" star is a fan of the show, but more specifically the frequent nudity on it
Also read: 'Wish I Was Here' Review: Zach Braff's Passion Project Features Big Moments and Empty Characters

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Dax Shepard
The "Parenthood" actor and his wife Kristen Bell took fandom to a new level when they dressed up like Drogo and Daenerys
Also read: Dax Shepard Made Wife Kristen Bell Shave Him for His ‘This Is Where I Leave You’ Nude Scene (Video)

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Madonna
The Material Girl aspires to be the Mother of Dragons, as seen in the Instagram photos she posted in 2014
Also read: Madonna Takes Nasty Tumble During Brit Awards (Video)

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Seth Rogen
"The Interview" star loves the show so much, he and rapper Snoop Dogg recapped an episode together for season four
Also read: Seth Rogen, Zac Efron to Return for ‘Neighbors 2’

TheWrap
Sean "P. Diddy" Combs
The rapper, actor, and producer starred in a "Game of Thrones"-style music video for his single "I Want the Love"
Also read: Funny or Die and Diddy Reveal He Was First Black 'Downton Abbey' Cast Member (Video)

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Troian Bellisario
Not even this "Pretty Little Liar" is immune from the feelings wrought by the deaths of major characters on the HBO show
Also read: 'Pretty Little Liars' Star Troian Bellisario Gets a Date on ‘Suits’ (Video)

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Elizabeth Banks
The "Hunger Games" actress is eagerly awaiting the show's return, even posting about it on her personal blog
Also read: Elizabeth Banks, Vine Star King Bach, Jamie Chung Debut College Sex Comedy 'Resident Advisors' (Photos)