Shoto Todoroki

Shoto originally had a cold, aloof personality, which stemmed from his abusive upbringing and complicated family life. Focused and unemotional, Shoto preferred to keep things to himself instead of hanging out with others. After the events of the U.A. Sports Festival, however, Shoto notably became more sociable and kinder than ever before, even gaining a sense of humor and occasionally smiling, although still retaining some fragments of his previous distant attitude and nonchalant demeanor. After the Provisional Hero License Course, he began opening up more to his classmates and has lightened up from his usually serious demeanor. Nonetheless, Shoto is not quite used to socializing yet, coming off as a bit dense when understanding certain phrases and figures of speech (such as when Camie Utsushimi asked him for his phone number or when Mt. Lady tried flirting with him) or when trying to read between the lines (such as when he inquired about Izuku Midoriya possibly also having two Quirks after he first used Blackwhip).

While usually quiet and reserved, Shoto initially possessed a moderate level of arrogance, which, combined with his solitary tendencies, sometimes made him take the initiative without considering the opinions of others, displaying confidence that he could take on any obstacles with his own strength. He used to be much more unfriendly as well, evidenced by when his cold attitude caused Inasa Yoarashi to resent him while he was none the wiser. Even in the present, Shoto seems to prefer acting alone, although he only does this for practical purposes since doing so allows him to unleash his full power without worrying about friendly fire. Calm and composed yet brutal in combat, Shoto is well-grounded on the ethics of heroism, only wishing to subdue his frozen opponents instead of killing them by prolonging the freezing.

Shoto angry Shoto infuriated with Endeavor.

Shoto once had a deep loathing for his fire abilities, which he inherited from Endeavor, as it symbolized his father's wickedness towards him and his mother as well as what he was born to be: a tool to surpass All Might, a fate that he detested. As such, Shoto decided to rely solely on his freezing power and never use the other half of his Quirk in battles (save only for melting his ice), going so far as to cover his left torso and arm with ice in his first Hero Costume to symbolize his rebellion against his father. Shoto often felt bothered by Endeavor's mere presence, and could barely contain his anger while talking to him, especially whenever the Pro Hero brought up the purpose he had intended for his son since before birth. Ironically though, Shoto's animosity towards his father made him more like how Endeavor was, being apathetic and indifferent towards others while obsessively focusing on his own goal of rejecting his father. Upon first meeting him, Inasa noticed that Shoto had the same hate-filled glare that Endeavor had due to his hatred driving him while simultaneously holding him back from his full potential.

He is over 20 years old