Game of Thrones star Maisie Williams has criticised “mean” and “snobby” fans of George RR Martin’s original fantasy series.

The 17-year-old, who plays Arya Stark in the hit HBO series based on the A Song of Ice and Fire novels, complained that certain individuals spoiled the show for others by revealing plot lines.

“I’m so sick of going on the internet and seeing all the book readers being snobby, spoiling it for other people, then saying, ‘Well, it’s not a spoiler. The books have been out for years’,” she told TV Line.

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“Like, couldn’t you just stop being mad for a second and let other people enjoy the show?”

Williams, who herself doesn’t know exactly what the future holds for the indefatigable Arya, added: “They feel they have a claim on the series because they read the books first, and I understand that, but they don’t need to be mean about it.”

Shape Created with Sketch. Game of Thrones season 5 cast Show all 9 left Created with Sketch. right Created with Sketch. Shape Created with Sketch. Game of Thrones season 5 cast 1/9 Game of Thrones season 5 Oscar-nominated New Zealand actress Keisha Castle-Hughes will play the fiery Obara Sand, one of Prince Oberyn’s illegitimate daughters, who is seeking revenge for her father’s murder at the hands of the Mountain in season four Getty Images 2/9 Game of Thrones season 5 Nymeria “Nym” Sand will be played by Jessica Henwick, her best known role to date is in television series Silk and Spirit Warriors BBC 3/9 Game of Thrones season 5 Jonathan Pryce will star as the High Sparrow, a religious figure who could be making waves in King’s Landing Getty Images 4/9 Game of Thrones season 5 Alexander Siddig, who will be playing Doran Martell, the stoic ruler of Dorne and the older brother of the gruesomely slain Oberyn Getty Images 5/9 Game of Thrones season 5 Enzo Cilenti (left) will take on the part of the slave trader Yezzan Rex Features 6/9 Game of Thrones season 5 London-born star DeObia Oparei will play Areo Hotah, the loyal protector of Doran Martell Getty Images 7/9 Game of Thrones season 5 Rosabell Laurenti Sellers will play Tyene Sand, one of the illegitimate daughters of Oberyn Martell, the Prince of Dorne Getty Images 8/9 Game of Thrones season 5 Myrcella Baratheon will be played by newcomer Nell Tiger Free Rex Features 9/9 Game of Thrones season 5 Newcomer Toby Sebastian will take on the role of Trystane Martell, the youngest son of Doran 1/9 Game of Thrones season 5 Oscar-nominated New Zealand actress Keisha Castle-Hughes will play the fiery Obara Sand, one of Prince Oberyn’s illegitimate daughters, who is seeking revenge for her father’s murder at the hands of the Mountain in season four Getty Images 2/9 Game of Thrones season 5 Nymeria “Nym” Sand will be played by Jessica Henwick, her best known role to date is in television series Silk and Spirit Warriors BBC 3/9 Game of Thrones season 5 Jonathan Pryce will star as the High Sparrow, a religious figure who could be making waves in King’s Landing Getty Images 4/9 Game of Thrones season 5 Alexander Siddig, who will be playing Doran Martell, the stoic ruler of Dorne and the older brother of the gruesomely slain Oberyn Getty Images 5/9 Game of Thrones season 5 Enzo Cilenti (left) will take on the part of the slave trader Yezzan Rex Features 6/9 Game of Thrones season 5 London-born star DeObia Oparei will play Areo Hotah, the loyal protector of Doran Martell Getty Images 7/9 Game of Thrones season 5 Rosabell Laurenti Sellers will play Tyene Sand, one of the illegitimate daughters of Oberyn Martell, the Prince of Dorne Getty Images 8/9 Game of Thrones season 5 Myrcella Baratheon will be played by newcomer Nell Tiger Free Rex Features 9/9 Game of Thrones season 5 Newcomer Toby Sebastian will take on the role of Trystane Martell, the youngest son of Doran

Warning: Potential spoiler alert

And referring to the recent backlash following producers’ decision to exclude Lady Stoneheart, a vengeful reincarnation of Arya’s murdered mother Catelyn Stark, from the TV show, Williams said: “I liked moments like this, because book readers think they know what’s coming, then we change it and it’s really funny to watch their reactions.

“They’re always like, “that’s not what happened in the books, so the show’s really bad now’. But really, they just feel insecure because they’re used to knowing what’s coming next.”

The fifth season of Game of Thrones is expected to air in 2015.