Tall, red hair, long horns and golden eyes, along with pale skin. He also wears a pair of rectangular glasses.
On his forehead, over his right eye there's a blood red scar with the shape of a cross.
His eyes turn black when he's mad. He also has a demon form but he NEVER shifts into it. He thinks he's less handsome that way.

He also has a big ego
He's really observant, making him pick up on things REALLY fast.

Hot, flirty, cunning and a bit manipulative.

He looks cold, takes a lot to warm up. In reality he's a kind of shy guy who puts up a façade to deal with the world.
He's a good person even though he doesn't look like it.
He doesn't talk a lot if he's not comfortable

He looks like a fuckboy but he's not one. He dislikes that kind of people.

He's tall (1,80/5'9), pale, has black hair and athletic body. His voice is deep
If he doesn't trust you enough, he doesn't bother to offer doing stuff for you.
He enjoys being alone most of the time.

Your cold roommate, maybe he's more than he seems

Is a womaniser
Tall, athletic
Blond hair reaches mid back, green eyes and green lipstick
Has grills that spell "Go! Go! Zeppeli!"
Is cocky and flamboyant, marked by the harshness of life
Gyro initially appears as a cocky and aggressive
Is also rude, deriding the majority of those he meets with insults and mocking comments
Gyro doesn't mince his words
nonetheless possesses an altruistic side and likes to help anyone who needs his assistance
Has an eccentric personality and is sometimes dramatic

After a concert your favourite rockstar 

Tall, hazel hair, honey coloured eyes

Very sweet and affectionate. Always ready to help someone in need. 
Very polite, hardly ever gets angry. 
Warm smile, can make smile anyone, no matter who. 
A dork and a hopeless romantic deep down

Sweet, caring and slightly goofy

Neito has a complex personality: he is particularly mocking, loud, and sarcastic but can also be a calm, kind, and intelligent person. Regardless of how he acts, two of his most prominent traits are him being vocal and deranged
Neito is shown to have an inferiority complex
His rantings can even make him come off as unhinged or mentally unstable in the eyes of others. He can also be insensitive and sometimes a bad influence
His insecurities mainly stem from his Copy Quirk
He is highly intelligent