Happy birthday, Nathan Fillion: His best GIFs, from 'Castle' to 'Firefly'

nathan-fillion-birthday-gi.jpg
It's Nathan Fillion's birthday and you can't let such an event pass by without taking the time to celebrate the "Castle" star. Though Fillion appeared on many shows, including a regular role on "Two Guys and a Girl," he jumped onto the radar of most as Malcolm Reynolds on Joss Whedon's "Firefly."

The show may have only lasted one short season, but it was enough to give him a permanent place in the pop culture hall of fame. His continuing to work with Whedon on "Buffy the Vampire Slayer" and, of course, "Dr Horrible's Sing-Along Blog," certainly didn't hurt the cause.

Now, with "Castle" going strong, there's no stopping Fillion. So take a moment to bask in his birthday glow with a collection of his best on-screen moments, captured in GIF form.

nathan-fillion-castle-1.gif
nathan-dillion-dr-horrible-1.gif
nathan-fillion-castle-2.gif
nathan-fillion-firefly-1.gif
nathan-dillion-dr-horrible-4.gif
nathan-fillion-elvis.gif
nathan-fillion-firefly-2.gif
nathan-dillion-dr-horrible-2.gif
nathan-fillion-castle-3.gif
nathan-fillion-firefly-3.gif nathan-fillion-castle-4.gif
nathan-fillion-firefly-4.gif
nathan-dillion-dr-horrible-3.gif
Photo/Video credit: ABC/FOX/Mutant Enemy/Tumblr