"Actors"? Is this one of those things like calling our character a "toon"? Cracks me up every time. =D
But yeah, I get what you mean. I like the idea.
"Actors" is the actual term used in the editor though.
Anyway, on Topic, some of the killing flourishes in the game really seem like they'll lend themselves to certain play styles. Stealth kills come to mind, with kidney stabs and throat slashes. Practical assassin stuff you know?
What seems more "Style" than practicality though, is things like the Dragonaxe ride in the demo, or the wolfpunt. Take the bad with the good I suppose.