If today's news that Arrow has brought on Echo Kellum to play Mr. Terrific in Season 4 wasn't enough for you, then you're in luck, because Comic Book Resources is reporting that Alexander Calvert has come aboard to play Anarky. In related news, another DC Comics series, Fox's Gotham, has hired Natalie Alyn Lind to play Silver St. Cloud. Alexander Calvert will make his debut as Anarky in the second episode of Arrow Season 4, but it isn't known when we will first see Silver St. Cloud on Gotham.

Arrow executive producer Geoff Johns confirmed at Comic-Con last week that both Mr. Terrific and Anarky will be featured this season, with Damien Dahrk (Neal McDonough) set as the primary villain. Anarky, a.k.a. Lonnie Machlin, is described as a, "deranged freelancing criminal who is willing to do whatever it takes to impress a potential employer." Who his "potential employer" may be is uncertain at this point. Alexander Calvert will have a recurring role as Anarky, although it isn't known how many episodes he has signed on for. Production just started this week on the new season, so very little is known about the story at this point.

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The show's producers also revealed the new costumes that will be worn by Oliver Queen (Stephen Amell) and Diggle (David Ramsey) at Comic-Con last week. We reported yesterday that Constantine (Matt Ryan) may be popping up during this new season, but nothing is set in stone at this time. Alexander Calvert most recently had guest-starring arcs on The Returned and Bates Motel.

As for Gotham, Entertainment Weekly reports that Natalie Alyn Lind's Silver St. Cloud will become a new love interest for Bruce Wayne (David Mazouz). Her character is described as an "ethereal beauty," with "pristine manners," who, like Bruce, also lost both of her parents at a young age. Silver is the niece of Theo Galavan (James Frain), a billionaire who is running for Mayor who becomes a father figure to Bruce, although Silver has nefarious plans in store.

Natalie Alyn Lind joins another new addition to the cast, Jessica Lucas as Tabitha Galivan, a.k.a. Tigress, Theo's sister. We have also seen in recent photos from the set that Cameron Monaghan is returning as The Joker. Natalie Alyn Lind is best known for playing Dana Caldwell on ABC's The Goldbergs, which returns for Season 3 this fall. What do you think about these new casting additions for Arrow and Gotham?