Monokuma

 Monokuma  (モノクマ)  is a strange teddy bear who proclaims himself to be the principal of the academy and initiates a life of mutual killing amongst the students. He is  in both Dangan Ronpa and the sequel Super Dangan Ronpa 2. He is a model of animatronic bear used as an avatar to interact with the students by the mastermind. There are seemingly infinite copies of Monobear, and he seems to have the ability to teleport. He is Usami's 'older brother.'

Quotes

 * “I’m monobear! Furthermore, your headmaster!”
 * “Hey, don’t make it sound like I’m some kind of a controlled children toys. You’ll sink my feelings deeper than the Mariana Trench…”
 * “Stand! Bow! Good morning, you bastards!”
 * “Well then. I’d like to begin an opening ceremony you’ll remember for life! To start, I have a short statement regarding you bastards’ school life from this moment on… Eh— You bastards are most certainly all geniuses filled with overflowing talent. You bring hope to the world! In order to preserve and guard that hope… You will live a communal lifestyle entirely inside this school’s walls from now on!”
 * “You will be completely shut out from the outside world! So you shouldn’t be worried anymore about what’s going on in this rotten world we all live in!”
 * “It doesn’t matter how much you shout. No help is coming.”
 * “You keep calling it a joke or a lie. It seems you’re still very much doubting me. But I guess it’s just natural. We’re living in an age where you can’t survive if you trust your neighbours, after all. In any case, I will let you confirm for yourselves whether my words are true or not. When you do that, you’ll soon understand that my words are always one hundred percent factual!”
 * “Oh? You’re a weird bunch, aren’t you. After all, didn’t you all come to this school out on your own volition?”
 * I’m sure you all want to hear all about it, so let me explain in detail. As students of this academy, you’re obliged to live your communal lifestyle in an orderly fashion… But in case someone breaks the order, that person alone can leave the school grounds. That is the rule called ‘graduation’!
 * “Beatingstabbingclubbingbeheadingburningsuffocatingstranglingslaughteringvoodoocursing… The method doesn’t matter.”
 * “‘Only a student who kills someone can leave’. It’s a very simple rule.”
 * “The most evil of actions leads to the best of outcomes. I hope you all cooperate.”
 * “Upupu… This heart-thumping feeling of distress… It’s just as if salmon suddenly started assaulting people…”
 * “Making such “hope”-filled kids kill each other — such a ‘despair’-filled situation —  My heart is all a-thump with excitement!”
 * “Killing each other is killing each other. If you need a dictionary I have one right here.”
 * “You keep using that word, prank. How many times do I have to repeat myself? You are really a bunch of thick-headed people. What’s with all the “let me leave”? I keep and keep and keep telling you… Don’t you get it? From now on this school is your home and your entire world.”
 * “It’s an all-you-can-kill, kill-or-be-killed, killing-killing-killing-all-around world!”
 * “Kyaa! Violence towards the headmaster is against the rules!!”
 * “Isn’t it natural? Of course I tried to kill you. We can’t have anyone breaking the rules, can we?”