I wouldn't. They are completely inappropriate for PC use. Just to start with, being one is -11 Refresh at a minimum (-7 Wizard, -2 Lawbreaker, -2 Sponsored Magic) and usually much higher. But more importantly they are EVIL!!! All capitalized and bolded for a reason.
If you're looking for how to build an NPC Kemmlerian, well, look at Grevane. He's a decent example, though I might rearrange the stats a little depending on how much of a threat you want him to be.