The Lost Boys (also known as the Lost Ones) are a minor antagonistic faction on ABC's Once Upon a Time. They are portrayed as the secondary antagonist of the first half of the third season and minor antagonists in the second half of the sixth season. They début in the twenty-second episode of the second season. They are loyal followers of Peter Pan and are children from various worlds.
Most of the Lost Boys left Neverland with Emma and her family while the rest remain loyal to Peter pan and stayed on the island.