The Speed of Thought

When Barry suddenly gains the power of speed thinking, he attempts to use his new gift to save Iris. While Barry is thrilled with his new power, Cisco is hesitant to trust it. Meanwhile, Eva must face a shattering truth.

Guest Stars

Carlos ValdesCisco Ramon

Victoria ParkKamilla Hwang

Efrat DorEva McCulloch / Mirror Monarch

Matt LetscherEobard Thawne / Reverse-Flash

Natalie SharpMillie Rawlins / Sunshine

Stephanie IzsakOfficer Daisy Korber

Patrick SabonguiDavid Singh

Morena BaccarinGideon (voice) (uncredited)

Jessica HaylesArielle Atkins

Tom CavanaghDr. Harrison Wells