Many of us remember The Greatest American Hero television series that ran from 1981-83 and starred William Katt and Robert Culp. It was surprisingly clever and fun, despite ladling out heavy dollops of cheese at the same time. And if it ever gets a big screen resurrection — c'mon face it, sooner or later it's inevitable (i.e. last year, Stephen J Cannell, the series creator, confirmed that a feature film was in the works, with director Stephen Herek rumored as attached to direct) — Nathan Fillion (Castle) would like to play the lead role of Ralph Hinkley.

Fillion tells IFC that it's one superhero role he feels he could portray.

"There are so many superheroes out there, I feel like there's none left," he said. "But there is one I think I could handle, and that's a redo of 'The Greatest American Hero'."

In the original series, Ralph Hinkley (Katt) is a teacher who comes into possession of a red alien suit that endows its wearer with superpowers—but lacks an instruction manual. Along with right-wing FBI agent Bill Maxwell (Culp) the two team up to battle criminals.

"With the technology we have available today for effects, I'd say it's largely the same idea, the same story," explained Fillion. "But the suit would be able to change and morph into whatever it is you needed him to do. So it could become armor, a scuba suit—you could do that stuff."

Yes, Nathan, you could. But why would you want to?