• "Game of Thrones" stars Maisie Williams, Sophie Turner

"Game of Thrones" stars Maisie Williams, Sophie Turner (Photo : Reuters)

A key "Game of Thrones" star discovers that his or her character gets killed on the show's upcoming season.

A mysterious actor or actress recently found out that his or her character gets killed in the upcoming season of "Game of Thrones."

"The showrunners rang me and told me, 'Your time is up in the series,'" the star recalled on the set, EW reported via Cinema Blend.

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The call came to the mysterious actor's surprise, as the show's actor or actress has read the books. The call made her realize that the TV series is moving far from the books.

The mysterious actor or actress recounted that at the start of the season, he or she believed that he or she had more scenes to film, but when he or she called his or her agent, the mysterious actor or actress found out that the book no longer tallies with the series.

Even the author of the book, George R.R. Martin told Cinema Blend that there are characters in his books that are well and alive, but sadly, these characters do not survive in the TV series.

The outlet cited that the mysterious character's death on season 5 is not the first time for the TV show to sway from the book's storyline.

According to the outlet, Mark Stanley experienced the same thing as the mysterious actor or actress did when he found out that his character, Grenn, was being cut from the series on season 4.

The outlet hinted that the mysterious actor or actress that gets killed on season 5 plays a major character in the series enough to have his or her own trailer.

In another news, Rolling Stone reported that "Game of Thrones" recently released new clips, which show Tyrion confronting Varys and Jon Snow talking to Mance Rayder in another.

"Game of Thrones" returns to HBO on April 12.