Katsuki: 
Katsuki Bakugo is infamous for his explosive personality, hot-headedness, and propensity for anger all of which made him a bad candidate for a pro hero

Deku: Izuku can also be defined as a dynamic character. While at first, he started off as insecure, tearful, and unconfident in his own powers, abilities and handling of his Quirk, he soon develops into a more focused, diligent and determined character, with his sights set on becoming a great hero Deku is also your brother.