Cassie Quick

Cassie Teresa Quick (キャシー・テレサ・クイック) is a female "speed demon" and an ally of Marcus Allen and the rest of the Legends. The daughter of scientists David Quick and Teresa Quick, Cassie is gifted in the field of science but decided to pursue a career in music, instead. In a lab accident, Cassie was struck by lightning and affected by Kane's rupture wave in a similar fashion to Marcus.

However, it took until 2018 for her powers to activate and encountered the Legends. After receiving training by Professor Grayson and Marcus, Cassie adopted the name Silverbolt and helped Marcus with Ryan Harper before leaving West City with her parents and establishing herself in another city.

She later helped during Sebastian Harper's raid on the Brotherhood's hideout.