(CNN) Daisy Ridley has reawakened the debate over "Star Wars: The Rise of Skywalker's" biggest reveal, saying that the character of Rey's lineage wasn't clear to her even partway through filming the final chapter of the trilogy. Speaking to guest host Josh Gad on "Jimmy Kimmel Live," Ridley said there were multiple changes along the way about the question of who Rey's parents were. According to Ridley, that included a connection to Obi-Wan Kenobi, then the notion that she was "no one" -- the theory presented in "The Last Jedi" -- before the final outcome, that Rey was the granddaughter of Emperor Palpatine.