9-1-1: Nashville actress Isabelle Tate had battled a neuromuscular disease in the years before her sudden death. "When I was 13, I got diagnosed with a progressive neuromuscular disease that weakens my leg muscles over time," Tate once recalled via Instagram. "When I was first diagnosed, I couldn't fully understand what it was or grasp what it could be. Over the years, I was going on with my life and would notice little things get more difficult for me." By December 2022, Tate revealed that her illness had "really progressed." "I've come to terms that if I want to live my life to the fullest, I need to use a wheelchair at times," she wrote in her lengthy statement at the time. "This has been a difficult journey for me because having to accept help and surrender to the progression of this condition has been extremely hard." Actress Isabelle Tate Dead at Age 23 After '9-1-1: Nashville' Appearance Tate continued, "I can't change it, so I'm choosing to embrace it and not let it define me. This has really changed my perspective on life, and if I've learned anything from this, it's to appreciate the little things that are easily taken for granted." Three years later, Tate's talent agency confirmed her death at the age of 23. "We are deeply saddened and completely heartbroken to share that Isabelle Tate passed away on October 19th," a Tuesday, October 21, statement shared by the McCray Agency's Instagram read. "I've known Izzy since she was a teenager and she recently returned to acting. She booked the first series she auditioned for, 9-1-1 Nashville. She had a wonderful time." The statement concluded, "I was so lucky to know her and she will be greatly missed by so many." Tate, who is survived by her parents and her sister, recently appeared in the 9-1-1 Nashville series premiere, which aired earlier this month. Her character attended a bachelorette party where stripper-turned-firefighter Blue (Hunter McVey) gave a lap dance. "What a beautiful spirit. I did her makeup for episode 1 of 9-1-1: Nashville," makeup artist Jenny Garner wrote via Instagram on Tuesday. "She will be missed." Meet the Cast of ABC's '9-1-1: Nashville' - Including Country Singers A cause of death has yet to be publicly revealed, though an obituary highlighted that Tate was "a fighter" amid her neuromuscular disease. "Isabelle was full of fire, a fighter, never once making excuses for the fact that she might have a disability relative to others," the obituary reads. "She was also quite musically inclined, often spending hours writing and recording songs with friends and even publishing a few. What she loved the most though was spending time with family and friends, [and was] always the life of the party. Her sister was her best friend and her mom was her shining beacon of light." In the wake of Tate's death, several other actors and friends have shared the condolences in the comments of her last social media posts. "Heartbreaking loss," actress Antonia Jones wrote. "Deepest condolences to all that loved this young lady." Another friend added, "I'm so sorry 😞. My late father-in-law had the same disease. It was heartbreaking watching his decline. Prayers for her loved ones."