Sezono nuolatiniai aktoriai 9

1. 

   Grant Gustin

   Barry Allen / The Flash

2. 

   Candice Patton

   Iris West-Allen

3. 

   Danielle Panabaker

   Dr. Caitlin Snow / Killer Frost

4. 

   Danielle Nicolet

   Cecile Horton

5. 

   Carlos Valdes

   Cisco Ramon / Vibe

6. 

   Hartley Sawyer

   Ralph Dibny / Elongated Man

7. 

   Jesse L. Martin

   Joe West

8. 

   Jessica Parker Kennedy

   Nora West-Allen / XS

9. 

   Tom Cavanagh

   Harrison 'Sherloque' Wells

Kviestinė kino žvaigždė 13

1. 

   Catherine Lough Haggquist

   Vickie Bolen

2. 

   Sarah Carter

   Grace Gibbons / Cicada II

3. 

   Islie Hirvonen

   Grace Gibbons

4. 

   Malia Baker

   Alice Bolen

5. 

   Michael Edwards

   Man

6. Stephanie Florian

   Woman

7. Alexander Moonie

   Barista Jason

8. 

   Jeff Sanca

   Cop

9. 

   Helenna Santos

   Nurse Shelley

10. 

    Chris Shields

    John Bolen

11. 

    Chris Klein

    Orlin Dwyer / Cicada

12. 

    Victoria Park

    Kamilla Hwang

13. 

    Morena Baccarin

    Gideon (voice) (uncredited)

Filmavimo grupė 4