User blog comment:StickFigure01/Heroes and other supporting characters that should've made an appearance in Arrowverse and Supergirlverse/@comment-12599421-20180107023859

I actually do agree with some of it. I agree that Sapphire Stagg, Ted Kord/Blue Beetle, Rex Mason/Metamorpho, the Bat Family and Captain Atom should appear. It would be interesting to see Sapphire follow in her father's footsteps like in Beware The Batman, Mason to appear on Legends of Tomorrow, Kord to appear on Arrow as Oliver Queen's old friend, and I can see Captain Atom appearing on The Flash with Wade Eiling trying to hunt him down and be a result of the particle explosion. I wouldn't mind the Bat Family appearing only if they introduce Gotham into the Arrowverse and they exist on Kara's earth, however, I doubt that'll ever happen.