A lot of new vigilantes have been added to Arrow this season – Ragman, Wild Dog, Artemis and Mr. Terrific… but there is one more being built up in the background: Adrian Chase / Vigilante. We met that Chase side of the character played by Josh Segarra and we've seen a sketch of the mask in the first episode. So when do we get to see more? Look to episode seven which is titled: Vigilante.
Executive producer Marc Guggenheim told EW.com:
What's kind of fun about the way we're writing Adrian, and the way we're portraying Josh's character, is we're writing with the knowledge that the audience has a certain amount of comic book knowledge. If they don't, if you're not a comic book fan, it'll fly over your head and it's totally fine; it's like an adult joke in a Pixar movie. But if you are familiar with the comic, then you'll probably interpret certain scenes in a very specific way, and that's fun for us. I don't think we've ever really done it in this fashion before, use what I call their comic book destiny as part of the storytelling.