I don't know much about the DC comics and the universe as a whole, as I'm mostly aware of Superman and Batman as they're the most iconic characters shown on TV the most and I hardly know the others characters of the DC universe aside from Flash, Wonder Woman (so many legal issues with her), Hawk Girl, Green Lantern, and Martian Manhunter but still not a whole lot.
I didn't know a lot about the Blue Beetle character until the Batman: The Brave and the Bold, which I admit which was rather childish (and had nods to the old Batman cartoons which I wasn't aware of) but in the end I liked it (except for Catwoman's costume... seriously?), and I've become quite interest in this character and quite liked him... can't recall if the Scarab actually had any lines in the show but I believe it still talked to Jaime. Episodes with Blue Beetle and Batman together were my favorites.
The other beetle character, Black Beetle, is another one from the DC Universe but I still don't know a whole lot about him but is a establish character in the universe. I'm guessing he is Blue Beetle's arch-nemesis considering their similar abilities and personalities as well as history.
And now there's a Green Beetle, but I can't seem to find any info on this character. Did he appear before in the DC Universe before or is he an all new original character added for this show? Kinda like how Harley made her original debut in the Batman: The Animated Series before appearing in the comics?
Can someone tell me?