Stana Katic Pens Handwritten Thank You Letter to 'Castle' Fans After the Show Is Cancelled

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Kate Beckett is bowing out gracefully! Following Thursday’s news that Castle had been cancelled after eight seasons, the show’s star, Stana Katic, posted a hand-written letter to her fans on Twitter.

“Dear Castle fans, cast & crew,” she began. “Your devotion to our show has carried us for these unforgettable 8 seasons. I’m lucky to have met & worked with & for the lot of you. I will always be grateful.”

MORE: 'Castle' Canceled After Eight Seasons Following Stana Katic Exit Drama

Her costar Nathan Fillion also took to Twitter to commemorate the ending of the series. "All things must end. It has been an honor working with the men and women of Castle. I am truly amazed at what we’ve done. Thank you all," he wrote.

He also added a special note to his fans: "Dear Fans,
In whatever project I do next, loudly notice how unlike Castle and fresh and versatile I am."

Earlier this year it was revealed that ABC was cutting Katic’s character in the event of a ninth season. Fans and co-stars immediately revolted at the idea of losing the crime-fighting detective. Fillion was set to reprise his role as mystery novelist Richard Castle should the series continue.

“Castle has been one of the greatest joys of my creative life, and I hope the show continues on for years to come,” Fillion wrote shortly after the news of Katic’s exit was announced. “Stana has been my partner all this time, and I thank her for creating the character of Beckett who will live on for all of us as one of the greatest police officers on television. I wish her well, and have no doubt she will succeed in everything she pursues. She will be missed.”

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Many speculated that the rift between the two star actors led to Katic being let go. A source previously told ET that the co-stars wouldn’t speak to each other on set. The two were reportedly asked to go to “couples therapy” for the sake of the show.

Feuds aside, the show’s other stars thanked ABC for eight successful seasons. Molly Quinn, who played Castle’s daughter Alexis, tweeted, “#Castle was a cornerstone of my life. A safe environment to learn. Thank you @ABCNetwork for giving a carrottop kid of 14 an amazing start.”

Jon Huertas, who played Detective Esposito, tweeted, “Was a good run but #Castle done.”