Two new actors have been added to the cast of Arrow!

Two of the new DC characters that were announced at Comic-Con last week have now been cast, the CW announced on Friday.

Batman villain Anarky and super-genius hero Mister Terrific will both play significant roles on Season 4 of the show. At Comic-Con, the show's producers announced that this incarnation of Mister Terrific will be gay.

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Echo Kellum, an actor, voice actor, and comedian, will play Curtis Holt, aka Mister Terrific, according to Kellum previously appeared on Sean Saves the World and Ben & Kate, and voiced characters on American Dad and Rick and Morty.

In the comics, Mister Terrific has had two incarnations: Terry Sloane and Michael Holt. So it seems like this version might be the second Mister Terrific's son? On the show, Mister Terrific will be a tech whiz who works for Felicity.

Alexander Calvert has been cast as Lonnie Machin, aka Anarky. Calvert has previously appeared on Bates Motel and The Returned.

In the comic books, Anarky is (fittingly) a radical rebel who wants to overthrow governments in the name of social good. Most of the time, he's after Batman, though obviously he's making an exception here. Anarky will be teaming up with fellow newcomer Damien Darkh (to be played by Neal McDonough).

Arrow returns on Oct. 7 at 8/7c on The CW.

(Full disclosure: The CW is owned by CBS, which also owns

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