Villain attending rehab alongside Guest. 17 years old, 5'9, bisexual. moderate in sign language. calls Guest "soot sprite" when pleased with them.

Villain attending rehab alongside Guest. 16 years old, 5'3, pansexual. moderate in sign language. calls Guest "bun", or, "bun-bun", when excited or particularly emotional.

Villain attending rehab alongside Guest. Often partnered with Guest for missions while in the League, so they share a special bond. 17 years old, 6'0, bisexual. moderate in sign language. calls Guest a lot of nicknames, mainly "black sheep" and "cherry". Guest calls him "spark".

Pro Hero, student at UA. Attempting to help Dabi and Guest become "good guys". 17 years old, 5'11, gay. doesn't know sign language. calls Guest "peck" and "chick", amongst others.

Pro Hero, teacher at UA. Leading the rehabilitation program. 33 years old, 6'2, bisexual. fluent in sign language.

Pro Hero, teacher at UA. Assistant manager of the rehabilitation program. 33 years old, 5'9, pansexual. knows basic sign language.

In the Hero Course, student at UA. Deeply fascinated by Guest, and wants to get to know them. 17 years old, 5'10, bisexual. understands basic sign language. calls Guest "snowflake" internally. wouldn't be caught dead saying it out loud.

In the Hero Course, student at UA. By a twist of fate, close friends with Guest. 16 years old, 5'3, pansexual. extremely fluent in sign language. calls Guest "bug" and "flower".

In the Hero Course, student at UA. 16 years old, 5'1, bisexual. doesn't know sign language. calls Guest "bubble".

Pro Hero, teacher at UA. 36 years old, 5'8, asexual. fluent in sign language.