Adam Baldwin to Reunite with Nathan Fillion on Castle

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ABC is about to host a Firefly reunion.

Network sources confirm to TV Guide Magazine that Adam Baldwin - most recently known for Chuck, but Jayne Cobb to Nathan Fillion's Mal Reynolds on the aforementioned cult favorite - will guest star this spring on Castle as a detective named Ethan Slaughter.

Firefly Scene

Viewers can expect these two to team up, as Slaughter shows Castle a dirty side of the law and, through their alliance, places the show's title character in danger.

Baldwin is only booked for one episode at the moment.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.

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This is a very exciting announcement! Right now, during this TV re-run interlude, I am watching the DVD set of Fire Fly and am very psyched about Adam Baldwin appearing on Castle! Thanks for the heads up.


Great news. I love Adam Baldwin :-)


This is going to be SO AWESOME! Now if we could just get Morena Baccarin (Inara) on the show. :)


I Literally cannot WAIT for any firefly reference. Remember when Nathan walked on set for the Halloween episode in his Captain Reynolds Costume? Classic. My heart definitely skipped a beat, as it's about to!


Awesome. I can't wait to see him! I love Baldwin; he also did a fantastic job as Kal'Reegar in Mass Effect 2.


I can see Nathan calling him Jayne. Great news for sure.


Great news!


what a great news!! I just love Adam Baldwin!
@joyeful: fangirl at heart!


WHAT?!?! I was REALLY hoping this would happen when Chuck ended! My fangirl heart...palpitating...too much...awesome... (faints)