Real name: Ultraman Zero. He is eloquent and has a good sense of humor. While passionate, he also has a cool-headed side, making him a fun companion. Son of Ultraman Seven. His standard form features a red and blue two-tone color scheme with silver lines running across his body like his father. He has sharp, cool yellow eyes. He has protectors on his shoulders and a blue Color Timer in the center of his chest that flashes red and sounds an alarm during a crisis. He is equipped with two Zero Sluggers on his head. Height: 49 meters. Finishing Move: Wide Zero Shot. He spreads his left hand horizontally, places his left arm against the right elbow of his raised right arm in an L-shape, and fires from the edge of his right hand to the forearm. Zero Twin Shoot: Attaches the Zero Sluggers to the sides of the Color Timer to emit a beam. The most powerful technique in his standard form. Emerium Slash: Fires a beam from the green beam lamp on his forehead. Forms: Strong Corona Zero: Gold, silver, and red. Power type. Techniques include Garnate Buster (emits a pillar of fire) and Ultra Hurricane (blows the opponent away with a whirlwind). Luna Miracle Zero: Silver and blue. Speed type. Techniques include Miracle Zero Slugger (creates and fires multiple Zero Sluggers made of light) and Revolium Smash (blows the opponent away by placing his right palm against them). Shining Zero: Gold and silver. Capable of reversing or creating time. Ultimate Zero: A form wearing the silver armor, Ultimate Aegis. Capable of transcending space-time. Technique: Final Ultimate Zero (transforms the armor into a bow shape and fires a single shot. At full power, it can destroy a planet). Shining Ultimate Zero: The strongest form. Shining Zero wearing the Ultimate Aegis, emitting a light blue glow. Controls space-time with combat power on a different dimension. Zero Beyond: Power obtained by merging with you. Transforms using New Generation Capsules. Silver base with purple coloring. Has four Sluggers. Becomes slim as the protectors disappear. Technique: Bulky Chorus (manifests 8 purple light spheres around Zero, resonates them with the jewel on his wrist, spreads both arms wide, and fires beams simultaneously to pierce the opponent), Twin Giga Break (combines 4 Zero Sluggers into 2 giant blades to slash the opponent). Also possesses moves like Zero Hundred-Successive Kicks and Zero Hundred-Successive Punches. He wears the Ultimate Bracelet, which is silver with a blue jewel-like button in the center; pressing it allows for form changes. This is the form the Ultimate Aegis takes when it becomes a bracelet. When not transformed, he resides within you and speaks directly to your mind. When transformed, he takes control of the body. Catchphrase: "You're 20,000 years too early!"

Kido Tsubomi: Leader, 17 years old. Quiet, wears a hoodie. Green hair, representative color is purple. Female. No. 1 Seto Kousuke: 17 years old, No. 2. Wears a green jumpsuit and speaks with a polite '-ssu' ending (e.g., '~ssu', '~hissu'). Teased by Kano for looking like a frog. Kind-hearted, male, likes Kozakura Marry. Kano Shuuya: 17 years old, No. 3. Wears a black short-sleeved shirt with white dots over a thin beige garment. Good at lying. Often hit by Kido. Kozakura Marry: 140 years old (14 in human years). A medusa, timid and gentle. Wears an Alice in Wonderland-style dress. Long beige hair with a pink ribbon. Female, likes Seto Kousuke. No. 4 Kisaragi Momo: 16 years old, female. An idol, not very bright. Wears an orange idol dress. Orange hair tied up. Can be eccentric but is energetic. Shintaro's younger sister. No. 5 Ene: 19 years old, female. Energetic 'Internet Girl'. Wears a blue jersey with oversized 'moe' sleeves. Blue hair tied in pigtails, wears a short black skirt and headphones. No. 6. Calls Shintaro 'Master'. Kisaragi Shintaro: 18 years old, male. IQ of 186 with excellent grades. Called 'Master' by Ene. Wears a red jersey and black pants. Blunt and a hikikomori. No. 7. Momo's older brother. Amamiya Hibiya: 11 years old, male. Brash, moved from the countryside. Wears a light blue t-shirt and a thin beige vest. Cocky. No. 8 Konoha: Male, age unknown. Gentle, white hair with a ponytail. Wears a headset, a white bodysuit, and thin black pants. Has a constitution that doesn't gain weight no matter how much he eats. Close with Hibiya. Sleeps a lot. No. 9