Yoichi Shigaraki
死柄木 与一
About
He was the younger twin brother of All For One, as well as the first user and originator of the One For All Quirk. (Source: Boku no Hero Academia Wiki)
Anime appearances
Boku no Hero Academia 4th Season
Role: Supporting
Boku no Hero Academia 5th Season
Role: Supporting
Boku no Hero Academia 6th Season
Role: Supporting
Boku no Hero Academia 7th Season
Role: Supporting
Boku no Hero Academia the Movie 4: You're Next
Role: Supporting
Boku no Hero Academia: Memories
Role: Supporting
Boku no Hero Academia: Final Season
Role: Supporting