Preview images for the Flash portion of The CW's four-show "Invasion!" crossover.

Official CW description for the Flash episode titled "The Present"

Greg Grunberg will be joining the cast of The Flash in a recurring role.

The CW has released their official description for The Flash's role in the four-part "Invasion!" crossover.

Screen captures from the extended promo trailer for the Flash episode "Killer Frost"

Preview trailer for the Flash episode "Killer Frost" directed by Kevin Smith

"Kid Flash" Keiynan Lonsdale talks about Wally West's current state of mind in the episode "Shade" in this interview from the set of The Flash.

Interview with Keiynan Lonsdale & Carlos Valdes of The Flash as they talk about "H.R."

Official CW preview images for the Flash episode "Killer Frost" directed by Kevin Smith

Preview clip for the Flash episode "Shade" airing tonight on The CW