Spike: ENTP(is not really interested in the material world. He does not "live" in the present but in the past as well as the future. Sees possibilities as well as having his own set of values and ideals that he holds to. He is world of possibilities. Constant Ti flow filtered through Ne)
Kiba: INFP(leads with Fi and has no practical or common sense. He is not at all down to earth and he has no sense of structure. He is impulsive and all of his actions are directed by feeling. He doesn't live in the present, but in the future. He has an ideal and no matter how impractical and unrealistic and illogical it is his feelings continue to dictate his actions) He reminds me of Cloud Strife in many ways(also an INFP) A dreamer who doesn't live in reality. Not that I blame him.
Tsume: INFJ (Natural and reluctant leader. Easily falls into the position of taking care of others.)