Sezono nuolatiniai aktoriai 6

1. 

   Grant Gustin

   Barry Allen / The Flash

2. 

   Candice Patton

   Iris West-Allen

3. 

   Danielle Panabaker

   Dr. Caitlin Snow / Killer Frost

4. 

   Carlos Valdes

   Cisco Ramon / Vibe

5. 

   Tom Cavanagh

   Harrison 'Harry' Wells

6. 

   Jesse L. Martin

   Joe West

Kviestinė kino žvaigždė 7

1. 

   Ryan Alexander McDonald

   Neil Borman / Fallout

2. 

   Kim Suzanne Engelbrecht

   Marlize DeVoe / The Mechanic

3. 

   Donna Pescow

   Dr. Sharon Finkel

4. 

   Wentworth Miller

   Leo Snart / Citizen Cold

5. 

   Katie Cassidy

   Laurel Lance / Siren X

6. 

   Neil Sandilands

   Clifford DeVoe / The Thinker

7. 

   Morena Baccarin

   Gideon (voice) (uncredited)

Filmavimo grupė 4