The Flash’s Mystery Girl will now be a series regular in Season 5.
Warning: Spoilers for The Flash Season 4 follow.
EW reports Jessica Parker Kennedy will reprise her role as Nora West-Allen, Barry and Iris’ daughter from the future. The character made her debut during Season 4’s Supergirl crossover, “Crisis of Earth-X.”
Nora West-Allen continued to appear throughout the fourth season, and showed off her super speed at one point. Her identity was confirmed in the Season 4 finale “We Are The Flash,” where she revealed she made a big mistake.
Source: IGN.com The Flash's Mystery Girl Will Now Be a Series Regular