Agent 8

Agent 8 (also called Number 10,008 ) is a playable Octoling in the Octo Expansion DLC.

Appearance
Depending on the player's choices, they can have different eye and skin colors, as well as being either a boy or a girl. They have angled eyes with black markings around their eyes (with a dash at the end for the female only), a sharp tooth on the opposite side of their teeth bottom and on top, a flat, pointed ear on the left and human-like, rounded ear on the right, small suckers, semi-pointed fingers. The female’s hairstyle features two thin shoulder length tentacles parted way in the front that curl at the tip and two larger but shorter tentacles in the back that too curl at the tip. The male’s hairstyle features a mostly shaved cut with one main tentacle mohawk down the center that curls at the end, in the back he has three small tentacles in a column. They both have gray under their hair, and ring-like spots at the ends of their tentacles. They wear a black leather crop top with one long sleeve, leather skirt or pants and boots, and a type of neon yellow bracelet on both their ankles and wrists; if they pick up Armor, their shirt will now have both sleeves on and reach down to their wrists and pants or skirt. When they're damaged, their sleeve will fall off and reveal a padded undershirt, they'll be in a weakened state similar to Agent 4. However, if the player completes the DLC, they will be able to wear the gear sold in the shops. On 1st June 2018, new hairstyles were revealed, including an Afro style for males, and a ponytail style for females. So far, the only hairstyles they'll have are the two already mentioned before.

History
Not much is known about Agent 8 so far. In the Octo Expansion trailer, they are seen waking up with amnesia in a subway station and being assisted by Captain Cuttlefish, as well as Pearl and Marina. However, it is implied that they are genetically engineered, as they are seen in a test tube with green fluid and green ink on them. They also have yellow tags on their left arm and right leg, those of which resemble hospital tags. According to a comment from Cap'n Cuttlefish, Agent 8 had the Squid Sisters's Calamari Inkantation "etched into their soul". This implies that they may have been controlled in some way, but had said control severed some time before encountering Agent 3.

Apparently, Agent 8 was battling Agent 3 in Octo Valley before they were attacked by "something" which knocked Agent 8, Agent 3, and Cap'n Cuttlefish into the Deepsea Metro. Agent 8 lost their memories from injuries suffered during the fall and became a test subject in the metro.

Role
Agent 8's role is to complete various missions in the Deepsea Metro. The reasons for these missions are not yet known, but they take place in an area that is supposedly a testing lab. They seem to have varied objectives, unlike Hero Mode, where the objective is to rescue the Zapfish.

Trivia

 * Agent 8 was first revealed as a character on March 8, 2018.
 * They notably look very different from the Octolings seen in the hero modes for Splatoon and Splatoon 2, instead resembling Marina more.
 * Their rounded ears could be based on the dumbo octopus, a deep sea creature which relates to the theme of the deep sea in Octo Expansion.
 * They are the first playable character to use dialogue.
 * Their name could possibly be a reference to the number of limbs an octopus has.
 * The Spawn Point lights have an 8 as their design, referencing Agent 8.
 * Agent 8's name is supposed to be their subject number shortened for convenience by Cap'n Cuttlefish.
 * Agent 8 is the only agent to not wield the Hero Weapons and instead wield different sets of standard main and sub-weapons.
 * They are the first player to have a fixed first-person camera view so the player can select Agent 8's gender, skin, eyes, and hair.