It

It is the main villain of the Wrinkle in Time movies.

A techno-organic being, half-machine and half-eldritch alien being, he keeps the population of the planet Camazotz under his control with mind control that combines mind-controlling implants with his own cosmic powers. The brilliant scientist Dr. Alex Murry accidentally travels to Camazotz via the tesseract, at which point It make Dr. Murry. into another of his slaves Dr. Murry's daughter, Meg, uses the tesseract to rescue her father, but in the process her brother, Charles Wallace, has his mind taken over by It. In the end, Meg performs an act of true love, which destroys it and frees everyone from his control.