Voodoo Face, Are these two criteria fighting each other? Options

[Ten Suns]

Hi all,

After the recent departure of Mercedes Westwind, our team's exotic dancer-turned-runner, our LA-based team is without a face and therefore BONED. Our party's infiltrator, who isn't digging on his character anyway, has agreed to retire his current guy and run a character that's at least partially a face. His only stipulation: he wants to play a voodoo character -- not just a voodoo adherent, but a character that has access to the possession power. Let me just say now that this guy is not looking to twink. I think he's genuinely looking forward to the prospect of roleplaying some loa servants, Count Zero-style.

So I want to help him build a functional character, but I've got to admit I'm pretty much lost, having never run a possession character. How would you guys approach this? Mystic Adepts are OK, straight magicians are OK, aspected summoners are OK, mixed 'ware and magic are OK -- he just wants to summon, have a good time, be a cool guy, and be survivable in combat, even if he doesn't contribute much to the fight.

EDIT: sr4, BTW. Also, I tried searching, to no avail.