Jack-Jack

Jack-Jack is a character in Kingdom Hearts Union χ. He is a baby with a plethora of superpowers.

Kingdom Hearts Union χ
Jack-Jack's power is channelled by the Book of Prophecies to create the and  medals.

Design
Jack-Jack is a baby with blue eyes and a small red tuft of hair. He wears a red and black suit with a black domino mask.

Origin
John Jackson "Jack-Jack" Parr first appeared in Pixar's 2004 film  and, voiced by Eli Fucile and Maeve Andrews in the first film and by Nicholas Bird in the second. He is the infant son of Bob and Helen Parr, and the youngest brother of Dash and Violet. In the first film, he is presented as the Parrs' seemingly normal baby. When Bob leaves home on a secret mission, Dash and Violet leave to follow Helen to find him, but not before Violet leaves Jack-Jack in the care of her friend Kari McKeen. At the end of the film, the supervillain Syndrome invades the Parrs' home and abducts Jack-Jack, intent on raising him as his sidekick, but Jack-Jack manifests superpowers of his own and subdues Syndrome.