9-1-1: Nashville star Isabelle Tate's death is bringing attention to a rare disease. On Thursday, October 23, news broke that the actress had died at the age of 23. Her agency confirmed the news via social media. "Isabelle 'Izzy' Tate had a rare form of Charcot-Marie-Tooth disease," McCray Agency shared via its Instagram Story on Thursday. "She passed away peacefully on the 19th of October. The family requests privacy as they deal with this sudden and shocking loss. Izzy recently returned to acting and booked episode 1 of 9-1-1 Nashville, which filmed in June and first aired October 6th.