Micah Fowler explained on Twitter that his character, JJ Dimeo, has a more severe form of cerebral palsy than he does in real life. Micah uses a wheelchair most of the time but can walk short distances with a walker. He can talk clearly enough for most people to understand him as well. His character, JJ, however, uses a power wheelchair for independence and is nonverbal.

Micah Fowler was cast purely on the basis of audition videos. He never met or spoke to the producers prior to being cast as JJ.