Haha! Yuri & Lithy will definitely butt heads! I just realize that Yuri's a strong necromancer. With her unknown connection to the Crossroad gateway Papa Legba protects, Yuri's abilities will actually conflict (or control) hers, in a sense. And, in a way, her control of certain aspects of death will conflict (or block) some of his. 

Therefore, arguments will ensue... until they learn to work together for the greater good. I'll have to send you my brainstorm of this shocking idea, and see what you make up of it. I think it'll be good character/group development, but damn! There's so much I've already had in design for my charrie that your charrie has broken, in a sense. I'm redesigning Lithy within the classical, older study of Voudou - more of the ancient sense I was taught, than the modern Haitian/Louisiana version. So, therefore, there aren't any conflicts or repetitiveness in skills between our two charries; but there will be enough conflict from the start - the typical 'mine is better than yours' standpoint that'll clear up through development.

K, brainstorming end... gotta get back to work.