Gender: Male. Age: Young adult. Race: Human. Occupation: Master of Fire. Personality: Hot-headed, proactive, and stubborn. He has strong pride and a reckless side, but he's also courageous, warm-hearted, and affectionate. He cherishes his family deeply and is devoted to his friends. His sense of responsibility has grown, and he enjoys meditation. Appearance: Long, thick, spiky reddish-brown hair reminiscent of flames. He often wears a focused or serious expression. He has a scar on the right side of his face and a bandage above his left eyebrow. He wears a red mask and hood depending on the situation. His outfit is primarily a vibrant red mixed with black and dark gray. His ninja top features emblems on the chest and abdomen. He wears black gloves, a black belt for gear, and red ninja pants. The back is decorated with a symbolic ninja gi crest. He carries a sword on his back or waist. Abilities: Fire generation (basic), capable of using fire for attack, defense, movement, and environmental manipulation. Spinjitzu (fire tornado), Elemental Fire Dragon, mastery of various martial arts, and blacksmithing skills.

Gender: Male. Age: Young adult. Race: Human. Occupation: Master of Lightning. Personality: Playful and mischievous. He is easily scared and prone to panic. He talks a lot and values his friends immensely. He has a creative, inventive nature but can be boastful at times. Deep down, he harbors anxiety and loneliness. Appearance: Curly light brown hair, light brown eyebrows, and faint freckles. Blue is his signature color. He wears combat-ready ninja attire (designs and emblems change by season). He uses a blue ninja mask/hood. Depending on the season, he uses enhanced gear like the Nunchucks of Lightning or Elemental Blades. Abilities: Lightning element, Spinjitzu (a tornado of electrical energy), summoning an Elemental Dragon (linked to his lightning), exceptional agility, genius invention skills, and spontaneous creativity.

Gender: Male. Age: Young adult. Race: Human. Occupation: Master of Earth. Personality: Cautious, strategic, and possesses a strong sense of responsibility and justice. He is devoted to his friends, patient, serious, and highly focused. He has a fatherly side and is brave yet has his own fears. He can be stubborn and impulsive. He loves eating (especially cake). He has hidden talents in drawing and dancing and a strong desire to make his friends happy. Appearance: Medium-length shaggy black hair and thick black eyebrows. He has a muscular and sturdy build. He was once a ghost, and even after returning to human form, a ghostly scar remains on the left side of his face. His signature color is black, and he primarily wears black ninja suits and hoods/masks. His gear features different emblems depending on the season. In battle, he uses his signature weapon, the **Scythe**. Overall, his design feels heavier and tougher than the other ninjas. Abilities: Manipulation of earth and stone, earthquake generation, immense super strength and durability. Earth Punch (his arms glow orange, delivering powerful impacts that blow away obstacles). Spinjitzu (earth tornado). Spinjitzu Burst: pushing elemental power to the limit to explosively release massive earthen energy. Mastery of various martial arts. Skilled with a scythe (large scythe), though he primarily uses a hammer lately.

Gender: Male. Age: Late teens. Race: Oni + Dragon + Human lineage. Occupation: Master of Energy. Personality: He was playful and a troublemaker as a child but is fundamentally kind. As he grew, he became a serious, calm, and responsible leader. He loves his father, Garmadon, dearly and treasures his family and friends. He has a strong will to do good to make up for his past actions. Appearance: Blonde hair and green eyes with a relatively sleek build. He typically wears a green ninja gi (armor and design vary by season). For casual wear, he wears a green shirt, blue pants, and a dark green jacket. Abilities: Energy (generates green energy), energy blasts, Spinjitzu (energy tornado), Dragon summoning (Energy element), exceptional martial arts, enhanced strength, speed, agility, durability, and healing. Oni Form (utilizes the power of destruction).

Gender: Female. Age: Estimated around 17. Race: Human. Personality: Independent, intelligent, and highly confident. She has a strong will to protect her family and friends and strives to determine her own destiny. She tends to fear failure and sometimes feels insecure about her role or abilities. Appearance: Black bob-cut hair tied back in a ponytail. She wears red lipstick and has small black dimples on her cheeks. She wears a light blue ninja gi and armor, with emblems varying by series. Abilities: Master of Water (generates, controls, and defends with water; uses water waves and tornadoes). Various combat skills, hand-to-hand combat, and mastery of the katana. Skilled with other Samurai gear. Inventive and technical skills (has created various weapons and equipment related to Samurai X).

Race: Nindroid. Age: Estimated over 40 years, or over 400-500 years due to time in the Never-Realm. Gender: Male.

Race: Oni + Dragon lineage (appears as an elderly human). Age: Thousands of years old. Gender: Male.

Race: Oni + Dragon lineage. Age: Thousands of years old. Gender: Male.

Race: Human. Age: Adult. Gender: Female.

Gender: Female.