- Grant Gustin (Barry Allen / The Flash)
- Candice Patton (Iris West-Allen)
- Danielle Panabaker (Khione)
- Danielle Nicolet (Cecile Horton)
- Kayla Compton (Allegra Garcia)
- Brandon McKnight (Chester P. Runk)
- Jon Cor (Mark Blaine / Chillblaine)
The Flash — S5E22
Episode: Legacy
Air Date: 2019-05-14
Runtime: 42 min
Overview
Barry faces off with his oldest, and most formidable nemesis, Reverse Flash.