Jackie (ジャッキー, Jakkī) is one of the minor character of The Promised Neverland. He is a 10-year-old boy and is a friend and the new adoptive brother of Phil at an unknown plantation at Grace Field House under the parental care of Yukko.
Jackie is first seen in the new orphanage Phil was sent to after his previous home burned down. He was seen playing outside with Carol, Simon, Helen and Phil and it seems like that he cares about his siblings a lot. He is first shown in chapter 100.
He has dark hair and freckles.
He seems like a happy boy.