“I always knew on some level that I was female,” she wrote. “But it crystallized about three years ago when I was a 14-year-old watching the show I Am Jazz with my mother.”
She explained that as she learned more about hormone therapy for transgender individuals, she knew it was something she needed to do. And because her mom was “immensely supportive and gracious,” they were able to seek guidance and help from her pediatrician as soon as she was ready.
She has had other big roles since she co-starred on Jessie.
When Josie still identified as male and went by the name J.J., she played other male characters in the shows Liv and Maddie and Champions and then had a role in the movie Spider-Man: Homecoming. More recently, Josie landed a role as Lisa in Netflix’s No Good Nick and as Tallulah in the TV movie Good People.
Source : https://www.distractify.com/p/josie-totah-jessie-character