When “The Flash” returns for its third season on Jan. 24, will Eddie Thawne come to Iris’ rescue and save her from a tragic end? That’s not without possibility, considering Rick Cosnett took to social media Monday and announced his return as Eddie on the hit CW series: “Hate to tease you but now I can say it: I’m coming back on #TheFlash.” Ok, hate to tease you but now I can say it: I’m coming back on #TheFlash Photo credit Harvey House https://t.co/LN99TxFo7Y Cosnett played Detective Eddie Thawne in Season 1, Iris’ love interest and an ancestor of the show’s big villain Reverse Flash, who’s born in the future.