Currently, disability representation in performing arts is minimal. One in four American adults has a disability of some kind, making them the largest minority in the country, yet they are also the least represented in the performing arts field: Ninety-five percent of disabled characters are played by able-bodied actors. A vast number of actors and actresses have won an Oscar for portraying a character with a disability, but only two actors with the same disabilities as their characters have been awarded. 

https://harvardpolitics.com/disabilities-in-performing-arts/