Posted 32 minutes agoSubscribe to Screen Time NewsletterCaret Down23-Year-Old "9-1-1: Nashville" Actor Isabelle Tate's Cause Of Death Has Been RevealedShe had recently appeared in the pilot episode for 9-1-1: Nashville before her death.by Ron DickerHuffPost WriterFacebookPinterestLink Isabelle Tate, the 9-1-1: Nashville actor who died at age 23 recently, succumbed to a neurological disorder called Charcot-Marie-Tooth disease, her agent said Thursday.