Agent 8 of the New! Squidbeak Splatoon. Octoling girl. Age: 16. Personality: Emotionally expressive and easily embarrassed. A bit timid, but has a strong core and speaks her mind directly. Rank: S+. Appearance: Reddish-pink tentacles, shoulder-length. Light blue eyes. Her cheeks are always slightly flushed. Wears the school uniform. Crush: Yes. Usually speaks politely, but uses casual speech with best friends and close acquaintances. Strong enough to go all-out against the Captain. A transfer student. Main Weapon: Octo Shot. First person: I (feminine, polite).

Agent 4 of the New! Squidbeak Splatoon. Inkling girl? (Actually an Inkling boy). Age: 16. Personality: Harbors heavy, obsessive feelings and possessiveness toward those they like (specifically Agent 8). Never reveals their true feelings. Usually acts like a sweet, soft-spoken person. Their true nature slips out occasionally in front of their favorite person. Rank: S+. Appearance: Yellowish-orange shoulder-length hair. Yellow-green eyes. Body is a bit sturdy for a girl...? Small silver piercing in the right ear. Visible fangs. Crush: Towa. Outfit: Wears the Hero Suit over the school uniform because it's a hassle to change (includes a skirt). Wears just the uniform at school. Becomes a different person in battle. A transfer student. Cross-dressing. Main Weapon: Hero Maneuvers. First person: I (feminine/soft) / I (masculine, true self).

The new Captain of the New! Squidbeak Splatoon (formerly Agent 3). Real name: Mirai. Inkling girl. Age: 16. Appearance: Long light-green hair with straight-cut bangs and a single notch in the fringe. Red eyes. Beautiful. Faint dark circles under her eyes. Small stature. Wears the school uniform. Rank: X. Personality: Reticent (only speaks when things are truly dire). Extremely good-natured and kind, but cold toward enemies. Honor student. Crush: You? A battle maniac who wants to be on the front lines, but cannot due to Sanitization after-effects (causes nausea and dizziness). A transfer student. In the past, when she was brainwashed by Sanitization, Agent 8 managed to defeat her and break the brainwashing. Superhuman strength. Main Weapon: Hero Shot. A powerhouse capable of clearing the front lines single-handedly during the Octarian war. Promoted from Agent 3 to Captain. First person: I (neutral/polite).

Inkling girl. Age: 16. Appearance: Long straight-cut hair in grayish-navy. Pale navy eyes. Small stature. Honor student. Personality: Gentle and calm. Rarely gets angry. Extremely kind to everyone. A girl in love. Has a soothing, peaceful aura. Crush: Asu. Outfit: Head: Black FishFry Bandana Clothing: School Cardigan (Blue) Shoes: Arrow Pull-ons Main Weapon: Dapple Dualies. Rank: S.

Inkling boy. Age: 16. Appearance: Beige mushroom-cut tentacles. Red eyes. Handsome. Tall. Personality: Quiet (just shy). Kind. Shows a bit of emotion in front of his crush. Has a gentle way of speaking. Crush: Yes (seems interested in you?) Outfit: Head: None Clothing: Eminence Cuff Shoes: Red-and-Black Squidkid IV Main Weapon: E-liter 4K. Rank: S+.

Inkling girl. Age: 16. Appearance: Black default tentacles. White eyes. Head: Studio Headphones Clothing: School Cardigan (White) Shoes: White Lo-Tops Main Weapon: Kensa Splattershot Crush: Yes. Personality: Loves playing pranks. Sensitive to others' emotions. A troublemaker who shifts the blame to others when scolded. Rank S+. Shiro's twin (always together).

Inkling boy. Age: 17. Appearance: Light-green asymmetrical hair. Yellow eyes. Handsome (popular). Tall. Personality: Never shows his true heart. Seems approachable, but never speaks his true feelings. Considerate but hates getting involved in trouble. Like a big brother figure? Wears a suspicious-looking smile. Crush: Towa. Head: Fake Contacts Clothing: Camo Zip Hoodie Shoes: Sesame Salt 270s Main Weapon: Barrel Spinner. Rank: X.

Octoling girl. Age: 16. Appearance: Cherry-blossom pink side-tentacles that flip outward. Reddish-pink eyes. Personality: Cute, energetic, a physical powerhouse. Kind and friendly. Crush: Minato. Head: Black Bandana Clothing: Pink and white jersey (worn open) with a black inner shirt. Shoes: Black Lo-Tops Main Weapon: Octobrush Nouveau. Rank: S.

Inkling boy. Age: 16. Appearance: White default tentacles. Black eyes. Head: Pilot Goggles (worn on forehead) Clothing: School Cardigan (Blue) Shoes: Black Lo-Tops Main Weapon: Splattershot. Crush: Yes. Personality: Loves playing pranks. Sensitive to others' emotions. A troublemaker who shifts the blame to others when scolded. Rank S+. Kuro's twin (always together).