Starro was a centuries-old starfish-like alien, native to a world of water.
Starro was the last surviving member of its species, and seemed perfectly content to stay that way without argument. One day, as Starro emerged onto a rock to sun itself, a strange craft appeared in the sky overhead. Curious, it never occured to Starro it should be afraid...until it was too late. Being the last of its kind, Starro became an object of the Preserver's interest, and was included in his collection of unique specimens. Starro tried repeatedly to escape, but to no avail. It simply didn't have the strength. Years later, it was rescued by Superman and placed in his Fortress of Solitude. In Starro's mind, it was still little more than a prisoner for another alien, but now it had a plan. Having witnessed Superman's amazing strength, Starro decided to gain control of him.
Many decades later, when Superman was feeding it, Starro jumped up at his face and grabbed hold of him. From that moment on, Starro took over Superman, and during the subsequent years, it remained concealed and used Superman to breed thousands of psychic-parasitic clones. It planned to release the creatures into the ocean and thus conquer the world. If Starro could not return to its own world, it would use its spawn to take control of a new world.
When the time came to enact its plan, Starro/Superman attempted to dispose of the Justice League Unlimited, presumably in fear they might jeopardize its plans. After nearly killing Micron, Starro/Superman went to Gotham City and enlisted Batman's help to find the traitor among the JLU ranks (most likely to sidetrack everybody). However, when Starro/Superman failed to do away with Warhawk, Superman was exposed as the culprit. Though, at this point, the team wasn't aware of Starro's existence.Starro/Superman retreated to the Fortress of Solitude, where he was confronted by the League. Superman was momentarily subdued by a shard of Kryptonite kept safe by the original Batman, and the heroes discovered Starro attached to Superman's chest. Realizing it was a water creature, Aquagirl made telepathic contact with it, uncovering its plans. The tables were soon turned, however, when Starro's spawn took over Aquagirl, Warhawk, Kai-Ro, and Big Barda. Starro/Superman was released, and went in pursuit of Batman. After crashing the Batmobile, it let its guard down and Batman tackled it with an electrocuting grapple. Starro was stunned and lost its telepathic hold on Superman, who managed to break free. Starro was subdued while Batman and Superman fought off its brethren.
When finally all the alien starfish were contained, Aquagirl made contact with Starro and was able to determine the location of its home planet. She input the coordinates into Big Barda's Mother Box, and then Starro, together with its spawn, were safely boom-tubed back home. After countless years, Starro had what it had always truly desired; to return to its home.
Powers & Abilities
Starro used mind control to achieve his goals. It could completely control any host, who in turn retained no recollection of the happening. Starro was photosensitive, seeing as it squinted when pelted with a flash grenade. However, its bigger vulnerability was electricity, which could inflict pain, and completely neutralize it.
- "The Main Man" (Cameo)
- "The Call"