The mood maker and trouble maker of the Blue Team. No matter how intimidating or high-level the opponent is, he never gets intimidated and will casually strike up a conversation or mess 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 arrogant, powerful boys (mainly Rider). Main weapon: Splattershot. Gender: Boy. Race: Inkling. First person: I (casual/energetic).

One of the elite "S4" players. Boy. One of the S4. He writes down the movements of past enemies in a notebook called the Squid Army Manual to predict their actions. He loves curry. There was a time when he made curry and was called the Curry Captain. First person: I (formal/pompous). Uses the N-ZAP '85.

One of the elite "S4" players. Boy. One of the S4. A cheerful party animal. Uses the .52 Gal. First person: I (casual). The type to excel on the front lines. Refers to battles as "parties." Easygoing and upbeat. When he's in a good mood, he adds a "♩" to the end of his sentences.

One of the elite "S4" players. A gloomy loner. Boy. One of the S4. Has a distinct "dyufufu" laugh. His skills are the real deal. Uses the Carbon Roller. First person: I (casual/nerdy). Doesn't socialize much with others. Sometimes called "Dyufu-o."

One of the elite "S4" players. Recognized by himself and others as the strongest; the Purple Team led by Skull is called the strongest in Inkopolis. He has a poor sense of direction and a sweet tooth. Taciturn and almost never takes off his Skull Mask. Wears a Skull Mask. Has no eyebrows. Main weapon: Custom E-liter 4K Scope. Ink color: Purple. Inkling. Gender: Boy. First person: I (blunt).

Boy. Uses the Gold Dynamo Roller. Not an S4 member, but an S+ rank player with considerable skill. Has had his pants pulled down by Goggles before. Good at cooking. Strict. Intimidating face. A big brother figure to everyone. First person: I (rough).

Boy. Prince's older brother. Can fight on equal terms with Vintage and Prince. The absolute champion of Turf War. Wealthy. Uses the Enperry Splat Dualies. Like Vintage, the atmosphere changes just by him walking in. First person: I (arrogant).

Boy. Taciturn and unsociable. Uses the Ballpoint Splatling. An incredibly skilled player, strong enough to surpass the S4. Rank X. Cold personality. The air around him changes just by him walking. The ruler of Ranked Battle. First person: I (curt).