Character

This article lists characters in the SS undefined.

Playable characters

 * Agent 3 (Splatoon) - Inkling - The playable avatar in Splatoon and third agent of the New Squidbeak Splatoon, a supporting character in Octo Expansion and the Captain of the New Squidbeak Splatoon in.
 * Agent 4 - Inkling - The playable avatar in Splatoon 2 and the fourth agent of the New Squidbeak Splatoon.
 * Agent 8 - Octoling - The playable avatar and main protagonist of the Octo Expansion.
 * Agent 3 (Splatoon 3) - Inkling or Octoling - The playable avatar in Splatoon 3 and newest agent of the New Squidbeak Splatoon.

Important characters

 * Squid Sisters
 * Callie - Inkling - One of the duo that comprises the Squid Sisters pop idol group and a host of Inkopolis News, along with her cousin Marie.
 * Marie - Inkling - One of the duo that comprises the Squid Sisters pop idol group and a host of Inkopolis News, along with her cousin Callie.
 * Off the Hook
 * Pearl - Inkling - One of the two members of Off the Hook, a band featured in Splatoon 2, along with Marina, that hosts their own television show, similar to the Squid Sisters from the first game.
 * Marina - Octoling - One of two members of Off the Hook, a band featured in Splatoon 2, along with Pearl, that hosts their own television show, similar to the Squid Sisters from the first game.
 * Deep Cut
 * Shiver - Octoling - One of the three members of Deep Cut, along with her costars, Frye and Big Man.
 * Frye - Inkling - One of the three members of Deep Cut, along with her costars, Shiver and Big Man.
 * Big Man - Manta Ray - One of the three members of Deep Cut, along with his costars, Shiver and Frye.
 * Cap'n Cuttlefish - Inkling - A war hero and leader of the Squidbeak Splatoon, he led the Inklings to victory over the Octarians 100 years ago. Now continues to monitor the Octarians in his old age and recruits new agents to stop their plans.
 * DJ Octavio - Octarian - The leader of the Octarian Army.
 * Smallfry - Salmonid - New Agent 3's Smallfry companion.
 * C.Q. Cumber - Sea Cucumber - A translucent blue sea cucumber wearing a train conductor's hat. He is the conductor of the Deepsea Metro.
 * Judd - Cat - A cat preserved in time, long after the extinction of humans. He plays the role of referee in multiplayer matches, and also gives battle advice outside the Battle Lobby.
 * Li'l Judd - Cat - A clone of Judd. He plays the role of co-referee alongside Judd.
 * Mr. Grizz - Grizzly bear - The boss of Grizzco Industries and the main antagonist in Return of the Mammalians. He speaks to his employees in Salmon Run through a fishing bear statue with a radio antenna attached to it.
 * Great Zapfish - Zapfish - A giant Zapfish which powers Inkopolis and has been stolen by the Octarians on two occasions.
 * Iso Padre - Giant Isopod - A resident of the Deepsea Metro who wears sunglasses, a gold neck chain, and a black leisure suit and carries a briefcase filled with toys. He also carries several childish accessories to further emphasize his playful side. He collects mem cakes.
 * O.R.C.A. - Artificial Intelligence - A computer system that first appears in Return of the Mammalians. It serves to record data of human history, and to conduct tests for New Agent 3 in Alterna.

Vendors

 * Crusty Sean - Prawn - The owner of the Shrimp Kicks store with an easygoing personality. His jacket gives the impression of tempura. In Splatoon 2, he moves to Inkopolis Square and opens the Crust Bucket.
 * Jelonzo - Jellyfish - The owner of the Jelly Fresh store. He is one of the few known jellyfish able to communicate with Inklings, albeit poorly, as his dialogue is rendered in broken English.
 * Annie - Sea anemone - The owner of the Cooler Heads store with a very shy personality. A clownfish named Moe lives in her tentacles. Due to getting too flustered greeting customers, she moves her shop online in Splatoon 2.
 * Moe - Clownfish - Slings insults at the customers of Cooler Heads at any given opportunity. Despite acting tough, he never leaves the safety of Annie's head.
 * Sheldon - Horseshoe crab - Owner of the Ammo Knights shop in all three Splatoon games. He is easily excited by the variety of weapons used in Turf War and is known to talk about them for a very long time. In Octo Canyon, he lends Agent 4 a variety of Hero weapons to use for specific levels.
 * Spyke - Sea urchin - Works in the back alley of Inkopolis Plaza. He allows players to order the gear of other players, albeit often for higher prices. In Splatoon 2, he has retired after making money through a get-rich-quick scheme.
 * Bisk - Spider crab - Owner of the Shella Fresh store with a laidback personality. At one point, he broke up with his girlfriend to pursue a career in music.
 * Jelfonzo - Jellyfish - Owner of Ye Olde Cloth Shoppe, and the son of Jelonzo. He is also capable of speaking to Inklings, but due to studying ancient texts, his speech is very antiquated. Despite this, he always stays up to date with the freshest styles.
 * Flow - Sea slug - Owner of the Headspace store with a very spacey and relaxed personality. Most Inklings seem to think of her as their "crazy aunt," and an emperor shrimp named Craymond lives on her head.
 * Craymond - Emperor shrimp - Lives on top of Flow's head. He has a very quick and anxious personality, in contrast to Flow, and frequently blurts out words when Flow finishes talking.
 * Murch - Sea urchin - Lets the player order others' gear and offers various other services to help players get the abilities they want. He is seen to look up to Spyke and appears to be following his get-rich-quick scheme. He appears in both Splatoon 2 and Splatoon 3.
 * Mr. Coco - Coconut crab - Owner of the Crush Station store with a friendly personality, contrasting with his intimidating appearance.
 * Jel La Fleur - Jellyfish - Owner of the Man-o'-Wardrobe store who speaks in a somewhat antiquated and formal style.
 * Gnarly Eddy - Nautilus - Owner of the Naut Couture store with a generally laidback personality. He works alongside Nails.
 * Nails - Sea snail - Works at Naut Couture alongside Gnarly Eddy. He has an excitable personality to contrast Gnarly Eddy's.
 * Harmony - Sea anemone - Runs Hotlantis due to its manager usually being absent. She has a relaxed personality, and additionally serves as the lead singer for Chirpy Chips.

Antagonists
The Octarians are the main antagonistic species of the story mode in Splatoon. They reside in Octo Valley, and are responsible for stealing Zapfish from Inkopolis. Their main ink color is dark fuchsia. The Octarians fought against the Inklings for territory in the Great Turf War and lost. Unlike Inklings, the species includes a great number of sub-species that act differently from each other. DJ Octavio is the leader of the Octarians in the single-player story modes Octo Valley and Octo Canyon.

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

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

Main article: Mr. Grizz

Mr. Grizz, CEO of Grizzco 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.

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

Jellyfish can be seen scattered in Inkopolis Plaza and across various Stages.

A species and type of currency in Splatoon and Splatoon 2. Their sole use is to increase the number of slots on gear or reroll all gear abilities on a select piece of gear.

Creatures that appear in Octo Valley and  Octo Canyon modes. The player must rescue one at the end of every level in order to proceed in the story. To take the Zapfish, the player must burst its shield with ink, like the Rainmaker's shield. Then they must touch it and the screen and music will change to say that they have passed the level.

Bands

 * Squid Squad
 * Namida - Inkling - Synthesizer
 * Ichiya - Inkling - Vocals and Guitar
 * Ikkan - Inkling - Bass
 * Murasaki - Sea urchin - Drums
 * Chirpy Chips
 * Harmony - Sea anemone - Vocals and Synth
 * Noijī - Inkling - Guitar
 * Raian - Flapjack octopus - Bass
 * Shikaku - Crab - Drums
 * Hightide Era
 * Taka - Double lined fusilier - Piano and Vocals
 * Kuze - Stonefish - Drums
 * Nishida - Pacific herring - Guitar
 * DJ Lee Fish - Jellyfish (assumed)
 * Bob Dub - Inkling (assumed)
 * Turquoise October - Octarian (assumed)
 * Wet Floor
 * Kagi - Inkling - Vocals and Guitar
 * Mizole- Inkling - Male Vocals and Guitar
 * Ryan - Inkling - Female Vocals and Guitar
 * Tsumabushi - Cutthroat Eel - Bass
 * Kazami - Candy crab - Drums
 * Bottom Feeders
 * Blow Bottom - Blowfish - Drums
 * Murutā Bottom - Yesso scallop - Guitar
 * Fin Bottom - Show betta - Violin
 * Tangle Bottom - Mozuku seaweed - Vocals
 * Fuka Bottom - Shark - Bass
 * Ink Theory
 * Mayaya - Sea anemone - Exotic drums
 * Aachin - Sea urchin - Bass
 * Yōko - Inkling - Trumpet
 * Karen - Nautilus - Piano
 * Bibi - Inkling - Kazoo
 * Kitamura - Sea Urchin - Drums
 * DJ Real Sole
 * ω-3
 * Cellist - Salmonid
 * Timpani - Salmonid
 * DJ - Salmonid
 * Dedf1sh - Octoling (Sanitized)
 * SashiMori
 * Karla - Scaly-foot gastropod - Bass
 * Ryū-Chang - Carp - Drums
 * Sawaberu Taichi - Largehead hairtail - Guitar
 * Paul - Octoling - DJ
 * Diss-Pair
 * Ikkan - Inkling - Bass
 * Warabi - Octoling - DJ
 * C-Side
 * Front Roe
 * Damp Socks feat. Off the Hook

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 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 wrote City of Color, and created a demo of it, 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.

References / Notes
Personajes Personnages