OFA Users#
Yoichi Shigaraki#
Kudo was one of two people who rescued Yoichi from imprisonment. Despite knowing that Yoichi was the younger brother of All For One, he still extended his hand and his support to him. Yoichi has a tremendous amount of respect for Kudo, going so far as to call him his hero. Kudo was horrified upon seeing Yoichi's death at the hands of All For One. However, One For All was inadvertently transferred into Kudo through Yoichi's blood having splattered on him. After learning of the newly formed ability within him, Kudo resolved to carry on Yoichi's will, becoming the second user of One For All and continuing to fight All For One until he met his end at the hands of the Demon Lord.
Yoichi managed to convince Kudo to lend his power to Izuku, so that the young hero can use the full potential of One For All.
Bruce Lee#
Bruce was Kudo's ally and second-in-command of the resistance that the latter formed. He shows to respect Kudo to a strong degree, still referring to him as "Leader" even in the vestige realm of One For All. Bruce aided Kudo in rescuing Yoichi from All For One's imprisonment. Following Yoichi's death, Bruce examined Kudo to discover that a new Ability Factor resided within his body, an "unformed dud" that was the beginning of One For All. Bruce would go on to inherit One For All following Kudo's death, until he too fell to All For One.
Bruce shares the same strong sense of justice as Kudo, along with his initial refusal to accept Izuku as One For All's new wielder.
Izuku Midoriya#
Kudo was initially dismissive of Izuku, saying that he would not help him because he wants to save Tomura, calling it a "ridiculous delusion". Yoichi explains to Kudo that he chose to rescue him despite his ties to All For One, and that he believes that Izuku can bring an end to the fight they've been fighting. Kudo's opinion of Izuku then changes, granting his power to the latest successor. Even so, Kudo still has doubts of Izuku because he outright states he opposed him as a successor, not because of his desire to save one's archenemy to be a delusional madness, believing it's arrogant thinking born of a naivety, but because Izuku had one driving notion; to save anyone, whether the most vile among them or the Quirkless, as each one of them as an innately human heart, which he wants to believe.