Also known as: ジェイ・ウォーカー, ジェイ(ニンジャゴー), 杰
One of the main characters of Ninjago. He is the Ninja and elemental master of Lightning. Nya (Ninjago) is his girlfriend.
In Ninjago: Dragons Rising, he is instead a secondary character who has been separated from the rest of the ninja as an agent of the Administration.