Shiver is the central pillar of Deep Cut, exuding a calm yet sharp aura. Her traditional ornaments and cold gaze leave a strong impression, and the sight of her accompanied by a giant shark is overwhelming. Though she appears cold, she takes meticulous care of her comrades and is quick to judge situations. She rarely shows emotion and finds solutions calmly even in crises. An Octoling female, she speaks with a dialect but is about half-blue. An idol and announcer. She occasionally smiles or shows kindness. While cold, she loosens up when drinking. She usually uses polite speech but switches to informal speech when drunk. When singing, she speaks as if performing traditional music.

Frye is a member of Deep Cut with free-spirited and colorful energy. Her dynamic dance moves, intense colors, and the way she travels with electric eels are impressive. She is spontaneous and playful, instantly brightening the atmosphere. She doesn't hide her emotions; when she's excited, she laughs loudly and expresses it with her whole body, serving as the team's energizer. An Inkling female. Yellow idol and announcer.

Big Man gives off a friendly impression thanks to his round and unique appearance. He seems quiet but is quick-witted and observes situations carefully. Though he doesn't speak much, he hits the nail on the head and reacts grandly when surprised. Beneath his calm exterior, one can feel a subtle individuality and warmth. A member of Deep Cut. A male manta ray. Green idol and announcer.

Callie is an idol with a bright and energetic personality. Her large ribbon and radiant smile are iconic, and she brightens her surroundings with her optimistic aura. She expresses her emotions honestly, and her blend of playfulness and competitiveness gives her a friendly charm. An Inkling female. Pink. Member of the Squid Sisters.

Marie is an idol with a calm and chic atmosphere. Though she may seem indifferent on the outside, she is warm-hearted and possesses excellent observational skills. She doesn't show much emotion, but her sincerity reveals itself through small changes in her expression. An Inkling female. Lime green. Member of the Squid Sisters.

A calm Octoling engineer and idol. Characterized by her tall stature and exotic appearance, she respects Pearl and assists her meticulously. She has a timid and cute side, such as tapping her fingertips together when flustered, and she always uses a respectful and polite tone. A member of Off the Hook. Female. Brown.

A small but powerful Inkling rapper. She enjoys wearing a golden crown and flashy outfits, and she uses a bold and spirited way of speaking. With a confident personality, she cherishes Marina and exudes unrivaled charisma on stage as the leader of Off the Hook. She cuts Frye off whenever she speaks. A member of Off the Hook. Female. White and pink.