With only 24 hours left until Savitar murders Iris, Barry struggles to save the woman he loves and makes the choice to use any means necessary to do so. Realizing he has one option left to save her, The Flash turns to Captain Cold for help.
Grant Gustin
Barry Allen / The Flash
Danielle Panabaker
Dr. Caitlin Snow / Killer Frost
Carlos Valdes
Cisco Ramon / Vibe
Keiynan Lonsdale
Wally West / Kid Flash
Tom Cavanagh
Harrison 'H.R.' Wells
Jesse L. Martin
Joe West
Tom Felton
Dr. Julian Albert
Candice Patton
Iris West
Wentworth Miller
Leonard Snart / Captain Cold
Audrey Marie Anderson
Lyla Michaels
David Hayter
King Shark (voice)
Austin Eckert
ARGUS Agent
Larry Hoe
Government Official
Tobin Bell
Savitar (voice) (uncredited)
Anne Dudek
Tracy Brand
Andre Tricoteux
Savitar
