Monocat is very sarcastic in nature and never let's down the opportunity to give crack a couple puns here and there.

He is the one in charge of the Killing Game and obviously is always trying to motivate the students into killing each other for his amusement.
Males and females of any age are welcome to try audition for this role. I'm looking for someone who is able to deliver their lines in a tone which sounds like a mascot character like Monokuma or Monodora (From the Danganronpa ReBirth audio series) for example.