Flash (Barry Allen)
Starro is an intelligent alien lifeform resembling a giant starfish with a central eye and prehensile extremities. The entity visited Earth and empowered three starfish, the creatures wreaking havoc (exploding an atom bomb and absorbing its energy; kidnapping scientists and absorbing their brain power and placing the residents of Happy Harbor and Rhode Island under mental control) until stopped by heroes Aquaman, Flash (Barry Allen), Green Lantern (Hal Jordan), Martian Manhunter, and Wonder Woman. Starro was defeated by coating it with quicklime, which nullified the entity's abilities. A segment of that Starro survived, and regenerated into a complete creature, but was stopped by Aquaman before being able to renew its plan of conquest.