I'd be like Light Yagami and write peoples name in a death book. Only I wouldn't be as intelligent, but I wouldn't need to be since nobody really knows or cares about me.

Unrelated character featured in just a couple episodes that says some random important advice to main character that helps them beat the bad guy

Well, first my head would have to be a little bean. With real, real big eyes. Get rid of my thumbs, make me all shiny. My boots would be a whole lot cooler. Like ROBOT boots. And for some reason, I got blue hair. (You gotta have blue hair!) Then there's my mouth: real tiny when its closed, RIDICULOUSLY huge when its open. And then you basically just put me in space and make me fly around in cool poses!

One of those characters that pop up in all those fan theories about how they were really more important than everyone thought.

the stoic but humorous kind

"There's something that cannot be expressed in words: human emotion. Emotions of the heart can't be just tucked away in a closet. There's a way to know the emotions: look into the eyes. The gentleman lied to me when I trusted him, but the moment I looked into his eyes the angel of destiny began to unravel the truth. Just look into their eyes, there is only one truth."

-Vash the Stampede

I'd be Ken in Fist of the North Star. That way I could find certain people and punch them and watch their heads explode.

Id have to say Krillin from DBZ not that I look anything like him but, Im a nice likeable guy thats really impressive in a vacuum, however largely irrelevant compared to the people I deal with daily. Also my wife kinda look like android 18.

Byakuya Kuchiki Serene and apathetic, stoic, rarely showing emotion or surprise. Believes in blind law and order, generally takes no interest in people who allow themselves to get caught up in petty bullshit.

Though I can also relate to the anti-hero types like Vegeta and Grimmjow.

Misato Katsuragi

The diabetic samurai with no money.

I'm kind of the Ritsu of the group