Season 4 (The Flash)

The Flash was renewed for a fourth season by The CW on January 8, 2017. It will premiere on October 10, 2017.

Cast

 * Grant Gustin as Barry Allen/The Flash
 * Candice Patton as Iris West
 * Danielle Panabaker as Dr. Caitlin Snow
 * Carlos Valdes as Cisco Ramon/Vibe
 * Keiynan Lonsdale as Wally West/Kid Flash
 * Tom Cavanagh as TBA
 * Jesse L. Martin as Detective Joe West
 * Tom Felton as Julian Albert
 * TBA as DeVoe

Synopsis
"Running up against an evil time remnant version of yourself is something no one should ever have to do, but that’s exactly what faced Barry Allen (aka The Flash) as he fought to save the life of fiancée Iris West from the God of Speed known as Savitar."

"Barry’s victory was short-lived, however, as an unbalanced Speed Force began to wreak havoc on Central City, forcing Barry to sacrifice himself for the greater good."

"With The Fastest Man Alive now trapped inside an extra-dimensional energy, and unknown dangers lurking in the shadows, it will be up to Team Flash to free Barry from his own personal Hell."

Confirmed plot points

 * The main villain this season will not be a speedster.
 * The main villain will be DeVoe, who was mentioned in the previous season by Abra Kadabra and Savitar.
 * There will be a four-way crossover with Supergirl, DC's Legends of Tomorrow and Arrow.
 * The season premiere will take place 6 months after the Season 3 finale.
 * Iris will step into the role as the leader of Team Flash.
 * Wally will not take on the mantle of the Flash.
 * Kid Flash, Vibe and Joe will battle a samurai like villain at some point.
 * Wally will wear Barry's suit this season.
 * Shawna Baez/Peek-a-Boo will return this season.