The Flash Season 8 Episode 15
Into the Still Force
The Flash gets an assist from XS. Meanwhile, CCPD enlists Chester for help when a mysterious device is found at a crime scene.
Guest Stars
Jessica Parker Kennedy
Nora West-Allen / XS
Jon Cor
Mark Blaine / Chillblaine
Carmen Moore
Kristen Kramer
Morena Baccarin
Gideon (voice) (uncredited)
Rachel Drance
Taylor Downs