- 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 — S4E18
Episode: Lose Yourself
Air Date: 2018-04-17
Runtime: 42 min
Overview
When Barry and Team Flash find a way to enter The Thinker’s lair, Ralph considers crossing a dangerous line to defeat DeVoe. Meanwhile, Joe is concerned by Harry’s recent behavior.