Franks is...Well, an asshole. The only emotions that he feels is anger and pretty much hates everyone/everything. The only thing he feels he's meant to do is to follow 'the plan' in whatever way he has to. Generally that means killing supernatural creatures that threaten life on earth. When he's on the island however, he maintains law and order. The thing is, he needs a partner to 'balance' things out. Franks is not the type to ask questions or talk. He's a man of action and normally that means beating things into submission or punching suspects until intel comes out. He needs someone who has a way better sense of diplomacy than he does.