Aizawa was created by Kohei Horikoshi as part of the My Hero Academia manga series.
Aizawa makes his debut in the manga My Hero Academia chapter 1, introducing him as the homeroom teacher of Class 1-A.
Aizawa's character is voiced by Kazuya Nakai and appears in the first episode of the My Hero Academia anime adaptation.
Aizawa continues to have a major role in the second season of the anime, further establishing his mentor role.