Sparkle is a 5-star Quantum Harmony character in Honkai: Star Rail, affiliated with the Masked Fools. She is a dangerous maestro of theatrics, inscrutable and unscrupulous, adorned with innumerable masks that make her the hero with a thousand faces. Unlike those motivated by wealth, status, or power, Sparkle is solely driven by amusement and the art of performance. In gameplay, she functions as a support character who increases allies' Critical Damage and advances their actions by consuming Skill Points. Her English voice actor is Lizzie Freeman, while her Japanese voice actor is Reina Ueda. Sparkle also has an alternate persona known as Sparxie, a Fire element character on the Path of Elation with a streamer-like personality.