Rick Cosnett, Matt Letscher, and Jessica Parker Kennedy will all be returning for The Flash's final run.
Screen captures from a preview clip for the Flash Season 3 premiere, titled "Flashpoint"
Official CW photos from the Flash episode "The Reverse Flash Returns"
Screen captures from the extended promo trailer for the Flash episode "The Reverse Flash Returns"
Official CW description for the Flash episode "The Reverse-Flash Returns!"
Matt Letscher will be returning as Eobard Thawne, the Reverse-Flash, in an upcoming episode of The Flash.