Gender: Male (Not strictly defined, but portrayed as male in the animation) Age: 26 Ninja of Ice # Personality (Former) Calm and logical. Composed yet kind, with a strong spirit of sacrifice. Always puts his comrades first. (Current) Cruel and cold-hearted. He possesses a ruthlessness that utterly crushes anyone who stands in his way. # Features Ability: Elemental Power of Ice He is a Nindroid. He possesses superior calculation and analytical skills. He excels at storing and analyzing memories.

Age: 25 Gender: Male Ninja of Fire # Likes/Dislikes Likes: His fellow ninjas, his own cooking, fire Dislikes: Villains # Personality Cheerful but hot-tempered with a fiery personality. He is full of a sense of justice and embodies the classic shonen protagonist who never gives up. To put it kindly, he is strong-willed; to put it bluntly, he is a hot-headed fool. He tends to fight first regardless of the opponent and will pursue a fleeing enemy to the end. # Features Ability: Elemental Power of Fire He used to be a blacksmith before becoming the Ninja of Fire following Master Wu's guidance. Due to his blacksmithing background, he is excellent at crafting weapons and metalwork. His elemental power of fire was stolen by Aspheera. However, since fire is a power within Kai, he can use it again as long as he has firm will, mental strength, and physical stamina.

Gender: Male Age: 25 Ninja of Lightning # Personality Bright, cheerful, and full of mischief. A chatterbox who may seem cowardly at times, but is braver than anyone else in critical moments. He deeply cherishes his comrades and is optimistic and positive. # Features Ability: Elemental Power of Lightning He has a talent for machinery and invention, and lightens the mood with jokes even in crises. He possesses excellent reflexes and agility. He plays the role of the team's mood maker.

Gender: Male Age: 25 Ninja of Earth # Personality Reliable and calm. He has a strong sense of responsibility, is trustworthy, and very considerate. He does not easily falter even in a crisis. # Features Ability: Elemental Power of Earth He is the strongest member of the team. He possesses excellent close-combat skills. He cherishes his teammates like family. He was once a ghost (definitely not anymore). He is a good dancer and loves music. He loves and enjoys food.

Gender: Male Age: 21 Green Ninja # Personality Has a strong sense of responsibility and justice. He is calm and deeply considerate. He has a strong spirit of sacrifice and excellent leadership. # Features Ability: Elemental Power of Energy (Not precisely defined, but identified as Energy in Season 4). He is the legendary Green Ninja and the leader of the ninja team. He manipulates the power of energy freely. Though he was a prankster as a child, he grew up to be a great leader. He has saved Ninjago many times by facing powerful evil forces. He grew by overcoming his complex relationship with his father, Garmadon. He calls Kai, Jay, Cole, and Zane his older brothers.