If there is one thing that fans of The CW’s The Flash have wanted since the series’ debut, it’s the arrival of Cobalt Blue, a character who, in comics, is not only a major threat for Barry Allen/The Flash but is also his secret twin brother making his nemesis turn even more dramatic. For years, fans of the series have theorized that Eddie Thawne (Rick Cosnett) could be the show’s take on Cobalt Blue, whose name in comics is Malcolm Thawne, but after his death in Season 1, hope that the Arrowverse series would take on that particular storyline has waned. Now, between a tease at the end of Season 8 and new comments from showrunner Eric Wallace, fans are wondering if Season 9 might at long last deliver. In a recent interview with Entertainment Weekly, Wallace gave a “wink, wink, nudge, nudge” answer about Cobalt Blue and reminded fans to not stop thinking about the tease at the end of last season.