Lesser Support Characters You Feel Could Be Their Own Main Characters

You ever feel that this one character in an anime seems very deep but gets too little screen time? Have a favorite character that appears only in one episode for less than five minutes? You ever wish that a lesser character in a series would have made a better character than the main hero or heroine? Then this is the club for you! In this club you can discuss with others your choice picks for characters from anime you feel got too little screen time. Everyone's opinion is welcome, the only requirement for the character is that he/she needs to be a support character that may have a deep, or ambiguous back story, that leads you to believe they would make good main characters, whether they have been on the show for the a single episode, or the whole series, all are welcome!