Park Young-hoon

Park Young-hoon (박영훈 역) is a main character in the 2016 South-Korean sports film Split (스플릿).

Biography
His father died when he was young, and his mother had an affair and left, leaving him in the care of his grandmother. When she died, she left a restaurant in his name. His mother and her new family moved back, and it is presumably at this point that he is sent to a hospital/institution to live.

Autism
He is stated to have an intellectual disability and "shows signs of autism".

Trivia

 * His birth date is 13 September 1991, making him 26 turning 27 during the film.