Kimahri is a Ronso of very little words. He speaks in broken English and is devoted to Yuna as her guardian.Mostly out of shame over his broken horn, Kimahri rarely speaks to anyone. Whenever he does, he only talks to those he likes and trusts, which is a main part of why he does not initially talk to the male protagonist Tidus.

Despite his frightening appearance, Kimahri can be gentle and kindhearted. He gets angry quite easily, but he always directs his anger towards those who threaten his companions. He's also fully dedicated to Yuna's safety, and is usually the first to be around when Yuna needs help. He doesn't hesitate to show his strength to others. This is further hinted by his resolve to reclaim his honor from his people.