Stała obsada sezonu 8

1. 

   Grant Gustin

   Barry Allen / The Flash

2. 

   Danielle Panabaker

   Dr. Caitlin Snow / Killer Frost

3. 

   Carlos Valdes

   Cisco Ramon / Vibe

4. 

   Keiynan Lonsdale

   Wally West / Kid Flash

5. 

   Tom Cavanagh

   Harrison 'H.R.' Wells

6. 

   Jesse L. Martin

   Joe West

7. 

   Tom Felton

   Dr. Julian Albert

8. 

   Candice Patton

   Iris West

Goście specjalni 10

1. 

   Greg Grunberg

   Tom Patterson

2. 

   Stephen Huszar

   Jared Morillo / Plunder

3. 

   Jessica Camacho

   Gypsy

4. 

   Sonia Beeksma

   News Anchor

5. Jason Hunt

   Father

6. Ava Julien

   Officer Kim

7. 

   Brandy Le

   Aircraft Marshaler

8. 

   Olena Medwid

   Olga

9. Tatiana Moldowan

   Teenage Girl

10. 

    Andre Tricoteux

    Savitar

Ekipa 6