Nathon Fillion Dons The Browncoat One Last Time Before Slipping Into A Cape?

Is the brave Captain Mal Reynolds toying with the idea of becoming the Greatest American Hero? But in other, more pressing news, guess what Nathan Fillion's new character, Castle, dresses up as?

In an interview with IFC Fillion revealed his dreams to revive the old curly-headed superhero series, but with minor updates to the suit:

If I had a dream project right now, I'd like to grab a hold of a superhero. There are so many superheroes out there, I feel like there's none left. But there is one I think I could handle, and that's a redo of "The Greatest American Hero."

We think he'd be fantastic, but we'll do anything to keep Fillion in tight fitting attire. And According to Fillion both William Katt and Robert Culp are friends with then executive producers on Castle, so there's a chance.

But in other amazing fantasy news Castle TV net caught a glimpse of Castle's Halloween costume, and it is beautiful. Please let this be in the episode — we miss Mal!

Nathon Fillion Dons The Browncoat One Last Time Before Slipping Into A Cape?