[jason taylor]

Firebrand was one of the more interesting villains in Honor Harrington. However it is hard to think of situations where you are directly pitted against him (when you are cleaning up his mess he is long gone and even if he is there you do not know it).

Actually that brings up another possibility. Use a character from fiction (or someone based on them). But frame it in a way that the PCs do not know he is their opponent.