Memorable Ouendan character returns in the sequel

Osu! Tatakae! Ouendan is one of those rare games where you are going to remember the bite sized story sequences because they are so hilarious. As a treat for fans it looks Inis is bringing back some of the characters that you saved in the first game back in the sequel. Remember the struggling student from the first level? He is back and you are going to have to help him again. Are there any memorable characters from Ouendan or Elite Beat Agents that you would like to return? Or would you rather have all new characters?