Tuk is a small barbarian who is hardheaded and (currently) frustrated up the wazoo. Every monster she'd fought had a terrible habit of ending up dead by its own hands, causing her to become disgruntled and angry. 

I imagine her to be a bit of a brat but not completely tantrum throwing. all she wants is to fight a monster that will put up a good fight, one that won't impale itself on its own horn or poison itself by it's own venom. 

I would say her tone of voice is around mid to high range, speech patterns are more brutish. Try any accent you can think of! I'm not opposed to any.