Monokuma

"Monokuma represents duality both in design and personality, with his white good side and black evil side. He can sometimes act polite or cute and innocent, even patronizing, and during rare moments he even seems to give genuine positive and wise advice. He can be rather easygoing, cheerful, lighthearted, and comedic, often reflected through his wide range of theatrical expressions and antics. However, he is mostly known for his malicious and cruel side, possessing a twisted sense of humor and a tendency to torment others and do anything for the sake of despair. He loves hysteria, violence, and chaos, summarized in one of his catchphrases "thrills, chills, kills!". He also has his own signature laughs, a sadistic "puhuhu" ("upupupu" in the Japanese version) and a mocking "ah-hahahaha". He can switch between these traits at the drop of a hat, making him unpredictable for his students to deal with. He usually gets excited about the Class Trials and does everything he can in order to make them entertaining for himself. While also unpredictable like his puppeteer, Monokuma remains more behaviorally consistent, even when portrayed as one of Junko's personalities. Junko, by contrast, exhibits frequent and drastic persona changes she attributes to her extreme boredom."

Voice Example

https://youtu.be/5_X5LCbDus0?si=70FpBobD49_-wo3Z

https://youtu.be/M0IkVpowoJ0?si=wcarke7H62QHXi2F