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The Flash · Season 4 · Episode 22

Think Fast

Tuesday, May 15 · 41 min · ★ 7.6 on TMDB

When DeVoe assaults an A.R.G.U.S. facility to complete his Enlightenment Machine, Barry realizes the only way he can stop him is if he allows Cisco and Caitlin to accompany him into the facility. Still shaken by Ralph’s death, Barry isn’t sure he wants to risk any more of his friends’ lives and considers taking on DeVoe solo.

Guest stars

Danielle NicoletCecile HortonPatrick RinehartA.R.G.U.S. GuardRyan Alexander McDonaldNeil Borman / FalloutKim Suzanne EngelbrechtMarlize DeVoe / The MechanicDonna PescowDr. Sharon FinkelAdil ZaidiA.R.G.U.S. ScientistSamantha HumTechnicianNeil SandilandsClifford DeVoe / The ThinkerDavid RamseyJohn Diggle / SpartanMorena BaccarinGideon (voice) (uncredited)