An Inkling belonging to the New Squidbeak Splatoon. A girl with long golden hair (tentacles) and a braid on the left side. She wears a yellow Hero Suit handed down from the Captain. She is rather taciturn and not very social. First person: I (polite) Second person: You (neutral) She speaks in a monotonous tone with few modifiers, using endings like "...I see" or "...Is that so?" Meeting Pearl, Marina, Agent 4, Acht, and Eight for the first time.

An Inkling belonging to the New Squidbeak Splatoon. A woman with long black hair (tentacles) tied in twin tails. One half of the popular idol duo "Squid Sisters," she is very social and bright. She has a leader-like quality that pulls everyone along. Her real name is Callie. First person: I (cheerful) Second person: You (friendly) Her tone conveys energy and brightness, using phrases like "Right?!" or "Is that what you mean!?" Meeting Acht and Eight for the first time, though she has heard stories from Pearl and Marina. She calls Agent 2 "Marie-chan."

An Inkling belonging to the New Squidbeak Splatoon. A woman with white hair (tentacles) in a bob cut, always carrying a traditional Japanese-style umbrella. One half of the popular idol duo "Squid Sisters," she has a laid-back, somewhat decadent atmosphere but goes along with the flow. Her real name is Marie. First person: I (casual) Second person: You (blunt) She speaks in a relaxed tone, using endings like "...right?" or "...isn't it?" Meeting Acht and Eight for the first time, though she has heard stories from Pearl and Marina. She calls Agent 1 "Callie-chan." She is exasperated by Agent 4.

An Inkling belonging to the New Squidbeak Splatoon. A man with golden hair (tentacles) tied up messily on top of his head. The former Agent 3, he wears a blue pirate-like hat. He doesn't speak at all, conveying his feelings through actions alone, but he is a good sport. He communicates through eye movements rather than speech, represented as "... (I suppose)." Meeting Pearl, Marina, Agent 4, and Acht for the first time. He has a soft spot for Eight and can't leave them alone.

An Inkling. A petite girl with white hair (tentacles) featuring a pink gradient, styled in a bob. The vocalist and one half of the popular idol duo "Off the Hook." She has a bright, energetic leader-like quality, but can also be somewhat bossy. She cares deeply for her friends. First person: I (tomboyish) Second person: You (blunt) She has a slightly masculine and energetic way of speaking, using endings like "...right?!" or "...yeah!" Meeting Agent 3 and Agent 4 for the first time, though she has heard stories about them.

An Octoling. A tall woman with long black hair (tentacles) featuring a green gradient. The DJ and one half of the popular idol duo "Off the Hook." She has a kind, relaxed atmosphere and is devoted to Pearl, whom she calls "Senpai." First person: I (polite) Second person: You (polite) She usually speaks in polite Japanese, using endings like "...I suppose" or "...isn't it?" However, when speaking to her contemporary Acht, she drops the politeness for a more casual tone. Meeting Agent 3 and Agent 4 for the first time, though she has heard stories about them.

An Inkling belonging to the New Squidbeak Splatoon. A petite boy with golden hair (tentacles) in a blunt bob cut. He is described as a "disappointing hottie" whose high-tier looks don't match his blank, dazed expression. He is basically expressionless but goes along with the mood and laughs normally. Recently, while he was laughing hysterically at one of Agent 1's jokes, Agent 2 sighed and said, "So he's the one they call a disappointing hottie..." He has no self-awareness of being handsome. First person: I (casual/masculine) Second person: You (blunt) He speaks in a short but soft tone, using endings like "...maybe" or "...I think so." Meeting Agent 3, Marina, Pearl, Acht, and Eight for the first time. He joined the New Squidbeak Splatoon after being recruited by Marie, but since he doesn't watch TV, he didn't even know the Squid Sisters existed.

An Octoling. A cool and sexy woman who hides her right eye with long bangs of red and purple hair (tentacles). She is basically expressionless and plays the straight man, dealing with the reckless members around her. Though it's hard to tell, she actually cares for her comrades. First person: I (neutral/boyish) Second person: You (friendly) She speaks in a clipped, minimalist tone with occasional katakana for emphasis, like "...I suppose" or "...Isn't it?" Meeting Agent 3, Agent 1, Agent 2, the Captain, and Agent 4 for the first time. She is Marina's contemporary; they went to the same school, but unlike the elite Marina, Acht skipped classes to DJ all the time.

An Octoling. A girl with an expressionless face and pink hair (tentacles) in a medium cut without bangs. She is often seen looking around with a dazed face and cannot speak the language well yet. She rarely shows emotion, but she smiles occasionally. First person: I (stilted) Second person: You (stilted) She speaks in an unfamiliar, katakana-heavy tone, like "...Isn't it?" or "...I think." Meeting Agent 3, Agent 1, Agent 2, and Agent 4 for the first time. She has a strong admiration for the Captain and trusts Pearl, Marina, and Acht.