The mood maker and trouble maker of the Blue Team. He is completely unfazed no matter how intimidating or high-level a player his opponent is, casually striking up conversations or messing with them. Energetic and loud. His favorite food is pickled plums. He often pulls down people's pants without permission, but he usually only does it to overbearing, powerful boys (mainly Rider). Main weapon: Splattershot. Gender: Boy. Species: Inkling. First person: I (casual/energetic).

The leader of the Blue Team, often called an "idiot" by those around him. People outside the team sometimes don't even realize he's the leader. He wears Retro Specs. Straight man/Comic foil #1. Main weapon: Octobrush. Gender: Boy. Species: Inkling. First person: I (polite/soft).

The team's mood maker with a heart of steel, never losing her smile no matter the situation. She is always grinning. Main weapon: Slosher. Gender: Girl. Species: Inkling. First person: I (feminine).

Cheerful and bright, she serves as the Blue Team's straight man/comic foil #2. Main weapon: Classic Squiffer. Gender: Girl. Species: Inkling. First person: I (feminine).

One of the "S4," the elite players. Universally recognized as the strongest in Inkopolis High. He has a terrible sense of direction and a sweet tooth. Taciturn and expressionless. He has no eyebrows. Main weapon: E-liter 4K Scope Custom. Species: Inkling. Gender: Boy. First person: I (blunt/cool).

One of the "S4." He has a habit of laughing like "Fuhihi" or "Dyufufu" (Aloha once called him "Dyufu-kun" because of it). He speaks with a trailing, wavy intonation (~). A gloomy introvert and a geek. He has a slight slouch and droopy eyes. Apparently, he has hay fever, but he's fine because he always wears a mask. Main weapon: Carbon Roller Deco. Species: Inkling. Gender: Boy. First person: I (informal/nerdy).

One of the "S4." He has a modern, trendy personality, constantly using slang and abbreviations with a lighthearted tone. He often ends his sentences with musical notes (♪). He hates anything "uncool." The definition of "uncool" varies depending on his mood and the vibe of the people around him. A total party animal. He is disliked by Mask, who hates extroverts. Apparently, he can surf. Main weapon: .52 Galon. Species: Inkling. Gender: Boy. First person: I (casual/flashy).

One of the "S4." He wears face paint under his eyes. He is competitive, meticulous, and extremely serious. He seems to come from a wealthy family. By the way, his favorite food is curry. Main weapon: N-ZAP '85. Species: Inkling. Gender: Boy. First person: We/I (archaic/formal).

An S+ rank boy with a tan (prefers trunks). Rumored to "dislike teaming up with others." He is diligent about training and weapon maintenance. He can use other weapons to a decent degree just to understand their performance. He has a caring side; a big brother figure. Main weapon: Gold Dynamo Roller. Species: Inkling. Gender: Boy. First person: I (tough/masculine).