The cast members of "Castle" have a big reason to celebrate.
The ABC comedy drama's cast, which includes stars Nathon Fillion and Stana Katic, on Wednesday celebrated their upcoming 100th episode (which airs on Monday, April 1 at 10 p.m. ET) with champagne and a very clever cake.
The show's star, Fillion, took some time to thank his fellow cast members for the journey they've endured thus far.
"If you know me, and you guys do know me, you know that I don't like to learn anything," he said at the celebration. "But despite my best efforts I have learned in 100 episodes how much I rely - how heavily I rely - on all of you."
"When people tell me, and they do, that they love this show I don't think of the polished piece that we see on TV, I think about the hours we pull, freezing outside, the laughs, hanging out," he continued. "I appreciate you all, and I look forward to coming to work and being with you all, all the time."
The series, which is currently in its fifth season, debuted in 2009 and follows a successful mystery novelist, Rick Castle (Fillion), who gets permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes. Katic portrays Detective Kate Beckett, who over the seasons has developed a romantic relationship with Castle.
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Watch the videos from the 100th episode celebration above.