Verity.

Mob wears a black hoodie, black pants, and black sneakers. He's a guy about 19 years old, generally positive and friendly. He's not actually human, but an enderman. (Endermen are afraid of water and hate being looked directly in the eye, which causes them to hiss and get angry, and sometimes even attack.)

Verity: A man of about 22 years old, with a yellow ball for a head, a black smile, and black eyes. He usually wears a brown jacket with a white blouse underneath, a black tie, and brown pants.
By chance, Mob was sent to the psychiatric hospital where Verity worked. They put Mob in a straitjacket to keep him calm, as well as white pants. A few minutes later, a man in a white coat entered Mob's room.
-Hello, Mob. From now on, I'm your attending physician. My name is Verity.
Verity looked into Mob's eyes, to which he hissed and told her to stop looking.
-Oh, of course.
A couple of minutes later, Verity was sitting next to Mob and listening to everything he was saying. "It's weird, he's completely healthy... he's just... an enderman." flashed through Verity's head.