We at the GB nearly plotzed the other night when a major character*** on Supergirl turned out to be . . .a beloved DCU stalwart (see end note at the bottom if you want to be spoiled). Whoa! This was in the same episode that the main antagonist was a character usually relegated to the trivia section, Jemm, Son of Saturn (who in the comics is a hero, but did a villain turn for TV). This got us thinking – with opportunities for appearances on Supergirl, Flash, Arrow, and even the upcoming Legends of Tomorrow mini-series, what other DC comics aliens, whether obscure or high profile, would be welcome presences on TV?
Our top choices below: