Brock Samson would be cool, though you’d likely need a muscle suit and a very big knife.
Jack Bauer would be pretty funny. You’d get to carry a gun, torture people, constantly talk to other people via a Blackberry, and yell “Dammit!” every 10 seconds. Oh yeah, and the whole kicking terrorist ass thing.
The Grand ol’ Captain Kirk.
He had ten thousand men.
He beamed them up to the Enterprise,
And beamed them down again.
And when you’re up you’re up.
And when you’re down you’re down.
And when you’re neither up nor down,
You’re no where to be found.
Well I think you can almost cut Charlemagne out of the picture and just connect the spelling and the knife together to make it scary. The fact that it happens to also be Charlemagne makes it go from “I wouldn’t want to run into him in a dark alley” scary to “I am not entirely confident sharing a planet with this man” scary.