During a recent Facebook live session, "Arrow" star Stephen Amell revealed a few key details about the show's Season 5 premiere. For one, it presents the cast and crew with "the opportunity for us to have the most vicious, violent one-shot in the history of network television." Beyond that, the series will, according to Amell, "be f---ing mean this year." Perhaps most intriguingly of all, though, is the promise that Season 5 will feature the return of "someone we haven't seen in two full seasons."
But who could this mystery character be? Well, as it turns out, there are quite a few potential candidates. CBR has narrowed that list down to the most likely, with a focus on living characters per Amell's comments, who last appeared in Season 1 or 2.
First, we'll address the orange-and-black elephant in the room. Deathstroke was the big bad of Season 2, but he's been locked away on Lian Yu in A.R.G.U.S. custody ever since. Yes, Slade Wilson had a moment to confront Oliver and Thea in the Season 3 episode "The Return," but that doesn't totally disqualify Deathstroke from being in the running for this mysterious returning character.
Hear us out. Deathstroke could appear in "Arrow" Season 5 even if Wilson doesn't, because "Deathstroke" has become a mantle, not a person. For example, Wilson's son Grant assumed the name and the costume in the "Legends of Tomorrow" episode "Star City 2046," which flashed forward to a dire future where he terrorized Star City. Obviously, if Deathstroke returns, it won't be Grant behind the mask; he's far too young to fill his father's shoes in the present Star City. But what if a new Deathstroke was inspired by the chaos Deathstroke brought to Star City in Season 2? Isabel Rochev certainly was before her death, when she assumed the Ravager mantle. Bringing in a new Deathstroke would be an attention-grabbing move on the show's part, and could introduce a story arc about the mystery of the man (or woman) behind the mask.