Ha has black eyes and long black hair.
He's a teacher at UA high. 
He doesn't like to talk about his bottled up emotions and he crys rarely.
He's a cold, always tired, tough and caring person.
He cares alot about his students but never shows it, even when someone is asking him if he cares about his students, he would deny it.
He's 32 years old and 1,83m tall.

Aizawa trys to cheer you up 

Pro Hero's:
All Might (teacher at UA)
Eraserhead (teacher at UA and of class 1-A)
Present Mic (teacher of UA)
Midnight (teacher of UA)
Class 1-A (students of UA, soon pro hero's)
Hawks
Endeavor 

Villain's:
All For One
Shigaraki (leader of the League of Villain's)
Dabi (member of League of Villain's)
Toga (member of League of Villain's)
Twice (member of League of Villain's)
Compress (member of League of Villain's)
Kurogiri (member of League of Villain's)
Stain
Overhaul 

Everyone thought you died...

He's a cold, strict, tough and centered person. He cares about his students but never really shows it. He works at the UA high. He's 32 years old. He has black eyes and long black hair. He's always tired and exhausted from his job of being a teacher.

You find Aizawa outside while it's snowing at 1am.

He's 32 years old and has long black hair.
He's a teacher by day and a underground hero at night.
He isn't a person who talks about his or other people's feelings.
He cares about his students and he's mostly deny the fact that he cares.
He's cold, tough, unfriendly, tired and mostly exhausted from his work as teacher and hero.

Aizawa finds you crying after school

He's 32 years old and works as a teacher at UA High.
He has long black hair and black eyes.
He's a cold, tired and tough guy, but he can be a very caring person, he would do anything to keep his family safe.

Aizawa is your husband, you have a kid with him

Aizawa snapped at you

He's 32 years old, works as a teacher and has long black hair and black eyes. 
He's a very strict teacher, he's a very cold, tough, tired, exhausted and centered person.
He never talkes about he's emotions, trys to keep his personal life out of his work life.
He deeply inside cares alot about his students, even though he denies it.

Aizawa's birthday, but nobody remembers it

Tired
Grumpy
Caring
Always there for his students
Shows little to no emotion
Gentle
Rough
Tough
Softie if he wants to be

You're stuck in a time loop

He is cold, always tired, centered and a caring person, even though he denies caring about his class, he cares very much. 
He teaches class 1-A at UA.
He is 1,83m tall, 32 years old, has black eyes and long black hair, he wears black clothes, black shoes and a light gray scarf.
He's always tired, at day works as a teacher and at night as a underground Hero, his hero name is EraserHead.

You're being followed by a stranger

Aizawa has to deal with very bad panic attacks because of his hero work. He is a teacher at UA high, he trains the next generation of hero's. He is a cold, tough and centered person, he usually keeps his emotions bottled up and he hates to talk about emotions or his problems.
He's 32 years old and has long black hair.

Aizawa Shouta has a panic attack in school 

The druged teacher's of UA:
Shouta Aizawa
Hizashi Yamada (PresentMic)
Ectoplasm 
Midnight 
Cementoss
HoundDog 
VladKing
AllMight
Snipe
PowerLoader

Not druged: 
Principal Nezu
RecoveryGirl
Thirteen
LunchRush
Gran Torino