Starro

Starro the Conqueror is an alien psychic starfish that attempted to attack Earth. He was defeated by seven heroes and imprisoned off-world, unintentionally becoming the catalyst for the formation of the Justice League of America.

Early life
Starro was an alien starfish with psychic abilities and had presumably conquered several planets before descending on Earth.

Starro's Siege
Starro decided to conquer Earth. However, his siege was thwarted by seven heroes and was subsequently imprisoned by the Green Lantern Corps..

Personality
Starro doesn't display much personality due to its alien nature. However, Starro does have a ruthless nature and a villainous goal to conquer many planets. It's also known for being indiscriminate, controlling and cruel, having been said to take pleasure in controlling others. When Starro faced the Martian Manhunter and found itself bested, it showed an apparent soreness for losing.

Physical description
Starro resembles a regular starfish, though the differences are the large singular eye at the epicentre and the looming size. Starro can also send out smaller iterations of itself as spores to latch onto others for control.

Powers

 * Enhanced durability: Starro can withstand attacks from large constructs and even attacks from Superman.
 * Regeneration: Starro is able to quickly regenerate from any wounds sustained naturally. However, this can be hastened with its spores, working like cells to heal itself.
 * Telepathy: Starro can telepathically communicate to anyone being controlled by its spores.
 * Mind control: When someone has a spore attached to them, Starro has full control and is able to manipulate them at will.

Season 1

 * Starro Attacks!

Trivia

 * Starro is the inadvertent reason for the JLA's formation.

Behind the scenes

 * In the comics, Starro the Conqueror was a psychic alien starfish and the first villain the JLA ever fought, debuting in The Brave and the Bold #28 in 1960.