Playing Persona 4 Arena made me realize that altough there were great characters in Persona 3, you don't really need more than those three, Aigis, Mitsuru and Akihiko. They are key characters. Jumpei, Yukari or Fuuka aren't that important. I do miss Koromaru though. But doing the same thing with Persona 4 characters is way harder. I mean, I can't tell who are the important ones. Who do you think are the essential characters of the P4 cast?