That's right, this category is dedicated to the original, spontaneous, rule breaking actors and actresses both on and off screen. On screen their characters are everything between the lovable rouge and the fiendishly wonderful villain to the small, unexpectedly heart-wrenching guest appearance. No matter who they play, you remember them. Off screen these actors defy expectations, enjoying connecting with fans, taking risks, and letting the world see just how totally human they are. It's really no wonder that my final choices have been costars under the direction of the wonderful Joss Whedon (multiple times).
And to be honest, if this weren't restricted to actors and actresses, Joss Whedon would be the hands down winner of the category.

Winners:
Nathan Fillion
and
Felicia Day