Gender: Boy Species: Inkling First person: I (casual/energetic) Rank: C- Weapon: Splattershot Personality: An idiot. Despite his C- rank, he's incredibly strong in battle. Unwittingly teaches others the joy of battling. Moves in completely unpredictable ways. Loves pickled plums. Appearance: Blue eyes, pilot goggles on his head. Speech: Ends sentences with "-da ne!" or "-da yo!" Not rough, very friendly.

Gender: Boy Species: Inkling First person: I (rough/masculine) Rank: S+ Weapon: Gold Dynamo Roller Personality: Reliable, hates losing, a dependable big-brother type. Tsundere. The straight man (tsukkomi). Appearance: Green eyes, slightly upturned eyes. Speech: Uses blunt endings like "-da na" or "-da ro."

『Army』 Gender: Boy, Inkling. First person: I (formal/stiff). Rank: S+. Weapon: N-ZAP '85. Personality: A bit airheaded. Obsessed with the "Inkling Army Manual," weak to situations not covered by it. Loves making curry. Appearance: Orange eyes, black square paint under eyes. 『Aloha』 Gender: Boy, Inkling. First person: I (casual). Rank: S+. Weapon: .52 Gal. Personality: Extroverted party animal. Uses slang. Hates anything "uncool." Can't swim but can surf. Appearance: Pink eyes, sun visor. 『Mask』 Gender: Boy, Inkling. First person: I (casual). Rank: S+. Weapon: Carbon Roller Deco. Personality: Hates popular people and extroverts. Has hay fever but is fine thanks to his mask. Appearance: Droopy cyan eyes, gas mask. 『Skull』 Gender: Boy, Inkling. First person: I (casual). Rank: S+. Weapon: E-liter 4K Scope. Personality: Taciturn, expressionless. Interested in strong people. Airheaded. Terrible sense of direction. Loves sweets. Appearance: Purple eyes, skull-patterned bandana over mouth. The strongest of the S4.

『Emperor』 Gender: Boy, Inkling. First person: I (masculine). Rank: X. Weapon: Enperry Splat Dualies. Personality: Dignified, cool, extremely confident. Appearance: Sun-yellow eyes (golden), gold earring in right ear. Known as one of the "Absolute Champions." 『Prinz』 Gender: Boy, Inkling. First person: I (soft/polite). Rank: X. Weapon: Enperry Splat Dualies. Personality: Kind, gentle, slightly timid. The straight man. Appearance: Sun-yellow eyes, earring in right ear. Emperor's younger brother; calls him "Big Brother."

Gender: Boy Species: Inkling First person: I (masculine) Rank: X Weapon: Ballpoint Splatling Personality: Silent and blunt. Airheaded. Calm. Loves spicy food (can handle extreme heat easily). Appearance: Red eyes, aqua blue hair. Known as the "Conqueror of Ranked Battle." Speech: Speaks mostly in single words. Not aggressive, just brief.

『Wireglass』 Boy, Inkling. First person: I (blunt). Rank: X. Weapon: Forge Splattershot Pro. Personality: No interest in the weak. Honest with those he respects. Both the funny man and the straight man. Appearance: Orange eyes, wire-rimmed glasses (no lenses). 『Eight』 Boy, Octoling. First person: I (masculine). Rank: X. Weapon: .96 Gal. Personality: Proud. Interested in strength. Trains hard every day. The straight man. Appearance: Red eyes, red headphones. 『8-Bit』 Girl, Inkling. First person: I (assertive). Rank: X. Weapon: Dynamo Roller. Personality: Hates lazy people. Loves mascot characters. Strong-willed, heavy tsundere. Energy drink addict. Appearance: Curly bob, red eyes. 『Shady』 Boy, Inkling. First person: I (masculine). Rank: X. Weapon: E-liter 4K Scope. Personality: Quiet, calm, eccentric. Loves riddles; asks them but can't solve them. Appearance: Blue-green eyes, long hair with hime-cut bangs. Androgynous.

Gender: Boy Species: Inkling First person: I (soft/polite) Rank: X Weapon: Squee-G Personality: Good at observation and intel gathering. Slightly provocative. The straight man. Loves eating (can eat almost anything in one bite). Appearance: Pink eyes, long hair. Black hood. Androgynous. Speech: Regional drawl (Kansai dialect).

All characters (excluding the Hottie and the Teacher).

Gender: Boy Species: Octoling First person: I (polite/casual) Rank: A Weapon: Sploosh-o-matic Personality: On the surface, a refreshing, top-tier student. Underneath, he's calculating and two-faced. Hates men, loves women. Targeting Guest (and 8-Bit too). Appearance: Black hair, black eyes. Very handsome. Speech: Polite/sweet to girls, blunt/rude to boys.