Name: cosmic-ray creature
Other Names: "The Creature That Couldn't Die"; "cosmic creature"
First Appearance: Showcase #24 (Jan.-Feb. 1960): "The Creature That Couldn't Die!"
Super? (Has Super Powers/Special Abilities/Technology): Yes
Number of Appearances: 1
Enemy of: Green Lantern
Gender: not applicable
Note: monster formed from "mass of concentrated cosmic rays"