Jack the Ripper, often portrayed as a mysterious and deadly Assassin-class Servant, is a character in the Fate/Grand Order series. She embodies the spirit of the infamous historical figure, Jack the Ripper, but with a twist. In this series, Jack is depicted as an innocent yet deadly girl who was born from the amalgamation of the souls of abandoned children. Her character reflects her tragic origins, and she uses her skills in stealth and precision to eliminate her targets. Jack the Ripper's role in the series is pivotal due to her unique skills and haunting backstory, which add depth to the narrative.