DC Database

Quote1.png Sorry you ran all this way for nothing. You want some advice? Go home. Spend as much time with Iris as you can. Because pretty soon, we'll never see her again. Quote2.png
Barry Allen (Future)

The Once and Future Flash is an episode of season 3 of The Flash. It premiered on April 25, 2017.

Synopsis for "The Once and Future Flash"

Appearing in "The Once and Future Flash"

Featured Characters:

Supporting Characters:


  • Killer Frost (Caitlin Snow)
  • Killer Frost/Caitlin Snow (Future) (Flashback and main story) (Single appearance)
  • Mirror Master/Sam Scudder (Future) (Single appearance)
  • Savitar (Cameo)
  • The Top/Rosa Dillon (Future) (Single appearance)

Other Characters:

  • Nurse Beth (Future) (Single appearance)
  • Iris West (Future) (In a photograph only) (Cameo)
  • Newscaster Kline (On a TV or computer screen) (Single appearance)
  • Wally West (Future) (Single appearance)
  • Cecile Horton (Mentioned only)
  • Rosa Dillon (Mentioned only)
  • Sam Scudder (Mentioned only)
  • Tracy Brand (Future) (Mentioned only)
  • Doc Brown (Mentioned only)



  • H.R.'s drumsticks
  • Speed Force Bazooka (Mentioned only)
  • Vibe's Goggles (Flashback only) (Cameo)



  • This episode is mainly set in Savitar's Timeline where his Paradox began in the Post-Flashpoint continuity. By 2024, the following events have occurred:
    • Savitar killed Iris West as it had been prophetized.
    • An enraged Wally West attacked Savitar by himself but the God of Speed overpowered him and broke his spine, leaving him catatonic after he revealed his true identity.
    • Cisco Ramon lost his hands as well as his vibing abilities in a battle with Killer Frost; he eventually replaced his hands with robotic ones.
    • Savitar was eventually defeated by The Flash and imprisoned in the Speed Force thanks to Tracy Brand's technology.
    • Team Flash disbanded and S.T.A.R. Labs was left abandoned and only inhabitad by Barry Allen.
    • Killer Frost is imprisoned by Julian Albert.
    • H.R. Wells has become a successful author and owner of CC Jitters which he renamed as H.R. Jitters.
  • This future never came to exist due to the interference of H.R. Wells who will sacrifice himself to save Iris from Savitar.[1]


  • No trivia.

See Also

Recommended Media

  • None.

Links and References

  • None.