Character

This article lists characters in the SS undefined.

Antagonists
DJ Octavio is the leader of the Octarians in the single-player story modes Octo Valley and Octo Canyon.

Commander Tartar, also known as the telephone, is the main antagonist of the Octo Expansion. It created the Sanitized Octarians by sterilizing them with primordial ooze.

Mr. Grizz, CEO of Grizzco Industries is the main antagonist of Splatoon 3 Return of the Mammalians. He is the creator of Fuzzy Ooze.

Notable species


Inklings are a sentient race of squid-like humanoids who are the main playable species in the Splatoon universe.

Octarians are a species of octopus creatures, coming in many varieties. The cut-off limbs of Octolings are the main enemy fought in the story mode of Splatoon.

Octolings are the Octarian equivalent to Inkling, being octopus-like humanoids. They sometimes serve the Octarian military, while many have left and integrated into Inkling society.

Salmonids are a species of salmon introduced in Salmon Run. They reside far off the coast from Inkopolis on man-made islands called "Spawning Areas". They have many different varieties. They are fought in Salmon Run as enemies, but in, one becomes a helpful character.

Jellyfish can be seen scattered in the cities and across various Stages.

Creatures that appear in Octo Valley, Octo Canyon, and in The Crater. They are the main collectable objective in these story modes, and the player must rescue one at the end of every level in order to proceed in the story.

A species and type of currency in the Splatoon series. Their sole use is to increase the number of slots on gear or reroll all gear abilities on a select piece of gear.

the unnamed enemies in are the single-player campaign's main antagonistic species. They appear to be mechanical Parrotfish and can be found in the Spire of Order.

Other

 * Denizens of the deep.
 * Sally and Hara Wataru, a pair of graffiti artists.
 * Marie mentions having a friend who is a blackbelly skate.
 * Marina mentions that her landlord is a narwhal and one of her friends is a sea sponge.
 * A handful of animals are seen and/or heard at various locations, including seagulls, sparrows, cicadas, and crickets. Unlike other creatures in Splatoon, many of which have evolved into more human-like forms, these animals seem to have changed very little over time.
 * Shy-Ho-Shy, the Squid Sisters' producer. She was a judge at the Youth Folk-Singing Contest, where Callie and Marie's performance caught her attention, which led to her becoming their producer. She created a demo of City of Color as a reference for the Squid Sisters during the making of the song, which is in Splatoon Live in Makuhari -Shiokalive-. Splatune 2's booklet contains an interview with Marina which mentions that she has been in touch with Shy-Ho-Shy.
 * Barry C., the owner of Hotlantis.
 * Glen Fiddler, the creator, CEO, and president of the Battle Lobby.