Starro

Starro is a race of intergalactic nomadic starfish that fly across the universe to conquer various civilisations through latching onto the face of a host and controlling their minds.

Their ability to dominate the minds of entire populaces with ease makes them an incredibly dangerous threat, and one of the earliest and greatest enemies of the Justice League of America.

Trivia

 * Starro first appeared in Brave and the Bold #28 (February–March 1960).
 * A Starro can asexually generate parasitic clones from its own body and command them to act in accordance with its will. By extension, a Starro can also transform ordinary Earth-based starfish into loyal Starro agents.
 * Members of the Starro species come in numerous sizes; ranging from the size of a human hand to the size of a planetary ocean.