Joss Whedon

JOSS WHEDON AND NATHAN FILLION

COLLABORATIONS: Firefly (2003-2004), Buffy the Vampire Slayer (1997-2003), Serenity (2005), Dr. Horrible’s Sing-Along Blog (2008)

Whedon has said that Fillion is the closest thing this generation has to Harrison Ford: an actor who can do action and comedy, be a romantic lead as well as a dramatic presence. And, given the many shades Whedon’s work can have—swinging from arch melodrama to out-and-out humor to musical farce to sheer tragedy—he needs a leading man equally versatile.

UP NEXT: Dr. Horrible 2, if the universe is a just and fair place.