The Legionnaires: the Walk-Ons

Entropy Kid; Radius Lad; X-Ray Girl. Created by Brian Michael Bendis and Ryan Sook.

Bendis and Sook's fourboot Legion of Super-Heroes had, among its qualities, a large cast of characters that left many characters underdefined. I can't guarantee that every well-established Legionnaire actually got a line of dialogue over the course of the series.

Among the characters who were shortchanged were three who did nothing more than show up in crowd scenes. There's nothing in the text of the comics that tells us anything about them, but there they were, and some information has leaked out anyway. (I remember there was all kinds of speculation about who the skeleton was in the green containment suit! "Could be Chemical King! Or Infectious Lass!") Here they are.

It seems that Ryan Sook did reveal something about their superpowers, at least. X-Ray Girl can make things transparent at a touch. Radius Lad can receive and utter any broadcast signal in the galaxy, and this can be more or less useful depending on the nature of the signal. And Entropy Kid can control the rate of decay of matter. So there you have it.

Will we ever get to see these Legionnaires in action? At the moment you'd have to say it's not likely. I don't mind them existing, though; my philosophy in these matters is 'more is better'. Especially since they're obviously nonhuman; there's been too little of that in Legion comics.