It’s safe to say someone over at The CW is a big Chris Wood fan.

The veteran of Vampire Diaries, Carrie Diaries and, most recently, Containment, is joining Supergirl in a series-regular role that’s shrouded in secrecy, TVLine has learned exclusively. All that we know is that the actor will be playing a surprise DC Comics character, and that he’ll make his debut early into the series’ second season.

Supergirl has made a number of significant casting moves as it transitions from CBS to The CW, most notably tapping Teen Wolf‘s Tyler Hoechlin to guest-star as Superman. Other key hires include erstwhile Wonder Woman, Lynda Carter, as president of Supergirl‘s United States, Cougar Town alum Ian Gomez as Snapper Carr, a journalist appointed by Cat (Calista Flockhart) to serve as the editor-in-chief of CatCo Magazine, and Floriana Lima (The Family) as gay Metropolis Special Crimes Unit captain Maggie Sawyer.

Wood, meanwhile, recently landed a recurring role in the second season of PBS’ Civil War drama Mercy Street. He’ll play Lance Van Der Berg, a handsome Union captain lodging at the Green home, where he strikes up a budding romance with AnnaSophia Robb’s Alice.

Supergirl Season 2 premieres Monday, Oct. 10 at 8/7c.