- as Barry Allen / Flash
- as Dr. Martin Stein
- as Iris West
- as General Wade Eiling
- as Eddie Thawne
- as Ronnie Raymond
- as Dr. Caitlin Snow
- as Clarissa Stein
- as Cisco Ramon
- as Bette Sans Souci (Archive footage)
- as Dr. Harrison Wells
- as Nora Allen (Archive footage)
- as Detective Joe West
- as Gorilla Grodd (Voice)
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