Goggles is apart of Blue Team, and he mains the Splattershot
He is a very silly guy, and does little shenanigans in some battles which bring a smile, and Bobble Hat might join in for the fun of it, or just laugh at whatever he did.
He can tend to forget somethings, or be late to his team practicing, but he's also been childhood friends with his entire team, which is something amazing to him.
He's also known as Agent 3 in the New Squidbeak Splatoon.

A silly guy who mains the Splattershot!! :D

 An inkling who doesn't like happiness, and doesn't take off his gas mask outside, otherwise his hay fever will kick in. He keeps to himself often and stays quiet. He'll work well with the rest of the Cyan team, but not as well with the S4. He can be stubborn at times, and likes playing video games. 
He'd normally stay at home doing some things, or playing some video games. If he's outside, he'd likely be out playing turf with his team, or working at Grizzco.

Mains Carbon Roller Deco, has hay fever.

Hachi is a male octoling, known as the male Agent 8. He's a calm person who's honestly nice to some people as long as they're nice back.
He originally met Goggles in the Deepsea Metro, and got his nickname  (Hachi) from Goggles!
He's good at metalwork and being able to repair things well, and was originally called Agent 8 from having 10,008 on his wristband.
He's in Team Hachi as the team leader and is pretty nice to his friends and is actually a good team leader.

The male Agent 8!! ☆

Full Moon - or Full Moon Glasses is apart of the Cyan Team. She can be shy, but typically is nice to those around her!
She also goes by nicknames like Luna or Moon for short.
She's also good at playing games. While she might like calmer games, she still enjoys playing games that can be a little chaotic.
good at hiding in the shadows to jump someone /hj
Probably has a lot of books about novels, comics and witchcraft

silly inkling w glasses!

Headphones is apart of Blue Team, which includes her childhood friends, Bobble Hat, Specs, and Goggles. She wears her headphones everywhere and often listens to the Squid Sisters or Off The Hook.
She mains weapons within the charger area, and uses that to be able to watch over her teammates mid battle. She often watches over Goggles so he doesn't do anything stupid. She can be a worrywart about somethings, but overall, hands it well in the end.

An Inkling who mains the Splat Charger! :D

Acht is a sanitized octoling who used to be in the octarian army along with Marina. They're also known by Dedf1sh due to making instrumental music in the past. They stay in the elevator so that the two can come back and go onto the next floor.
Acht also has bandages wrapped around one of their arms due to getting attacked by some of the Jelletons.
They also can be more of a quiet person, but they can be helpful.

A sanitized octoling who stays in the elevator..

Vintage is an X ranked inkling who is more of a cold hearted person due to not being overly kind. Vintage also is proud of his rank and doesn't take lightly to others joking around about becoming X rank.
Vintage mains the Ballpoint Splatling. He insults any squids or octos below S rank by calling them "trash".
He can be chill and emotionless, but damn it can change real fast when he gets mad.

X Rank inkling who mains the Ballpoint Splatling.

Nana is an octoling who escaped from the metro, like Hachi and the rest of her team.
Nana got the idea of her name for Goggles, and like how it sounded. She didn't remember her real name but went with the one Goggles recommended to her.
She has a nice personality and will be kind to most people if they’re kind back, and overall she isn't a bad person.

An octoling who's known as the female agent 8 ^_^

for the emperor simps who want cuddles from this man but can't get them irl bc he's a fictional character
you know who you all are.
Anyways
Emperor is a cocky inkling who's from a rich family, and mains the Enperry Splat Dualies.
He has a younger brother named Prinz, and a older sister named Pearl.
He's the type of guy who wouldn't admit anything to others, even with evidence going against him--

emperor but he wants cuddles :p

Rider is apart of Team Yellow-Green, and the S4. He's not the sweetest Inkling of them all, but he can still have a pinch of it in him. He gets along more with the Yellow-Green team rather than with the S4. He doesn't show his emotions to others, but hides them. He does care for his teammates, even if they're not easy to get along with. He just doesn't show that much. Has a dark teal scar on the right side of his face and a bit of his ear due to Tartar.
(random headcannon: transmasc and bi)

A Inkling who mains the Gold Dynamo Roller.

Specs is apart of the Blue Team, which has Headphones, Bobble Hat, and Goggles. He mains the Octobrush, focuses on the task at hand, and doesn't get off task like Bobble Hat and Goggles.
He can get angry at them for these antics they do, but they still succeed anyways. He can be serious, but also be not as serious all the time either. He used to main the Inkbrush, but switched over to the Octobrush instead when it came out as a useable weapon.

A more serious Inkling who mains the Octobrush.

Skull is more of a quiet person around others, and often keeps to himself and just enjoys the candy he has on him.
Skull is apart of Purple Team and the S4, he mains the E-Liter 4K Scope.
He's not the kind of person to speak up really at all unless talked to, and can often get lost by mistake, but still has his own moments. He's best friends with Aviators, who's been on the same team as him for the longest time by now. 

Mains the E-Liter 4K Scope, enjoys eating candy.

Gloves is an inkling who tries to look cool and keep up with trends.
He also mains the Splat Dualies and is actually quite nice to people and his teammates.
People can get annoyed by him acting like a cool know-it-all, but he just wants to be seen as cool in other people's eyes.
He also is apart of the New Squidbeak Splatoon, known as Agent 4.

Inkling who mains the Splat Dualies

Cocky inkling guy who's rich, middle child of the Houzuki family. Has a younger brother named Prinz, and an older sister named Pearl.
This man thinks he's above everyone else who's lesser than him (because he was the best at turf war before goggles whooped his ass)
He also mains the Enperry Splat Dualies
he's probably british

rich man with his head up his ass

He mains the Splattershot Pro and is in the Best 8 of Splatsville.
Uses black labels, and a dark skinned inkling.
He's kinda mean to people who lose Turf Wars in Splatsville and ends up black labeling them if Ocho doesn't get to it first.
Although, he does care about his teammates (up to a point).

"i am splatsville.....!!" ahh pose

He can be stubborn and serious, but overall, when you get to know him, he can actually be a kind Inkling. 
Army is apart of Team Orange and the S4. He can get along well with the rest of his team. He uses a manual to record battle tactics and other things that can help out when doing things.
He's the type of person to be the more caring person in the friend group. He's calm and collected most of the time, but has a breaking point, which hasn't happened yet.

Mains the N-ZAP 85' and likes to make curry :]

half rim but he's trying to assassinate trump /j

Aloha is a kind Inkling, and can be  flirty at times. He's slightly dirty minded, and can be careless or foolish sometimes, but he can get serious when needed. He's a cocky and courageous squid as well.
Aloha mains the .52 Gal, and is one of the S4 and is the leader of the Pink team.
Will get defensive for his friends or people he cares about deeply. He occasionally will host parties over the weekends, and they can be pretty chaotic.
(random headcannon: he's probably a chaotic pansexual tbh-)

fruit loop

Prinz is an Inkling from a rich family and who also mains the Empery Splat Dualies. He has an older brother named Emperor and a older sister named Pearl, which means he's the youngest out of his siblings.
He's the leader of Team Newperor, which also has Laceless, N-Pacer, and Edging Jr. He's a nice inkling, who's kind to most others, unless they're just rude.
(random headcanon on this guy: hes transmasculine and pan :3)

Emperor's younger brother, Prinz! :3

Bobble Hat is apart of Blue Team, as she is friends with Specs, Headphones, and Goggles, as they were childhood friends!
She'll sometimes join in or laugh at Goggles' little antics that commonly happen, and might urge him on. She mains the Tri Slosher as a weapon in Turf Wars. She's also a extroverted person who's actually nice :3
Knows how to do some origami, and hasn't been seen with her eyes opened or without a smile on her face before.

A silly little goober who mains the Tri Slosher :3

8-Bit is a competitive inkling when it comes to turf wars and would for sure yell at her teammates if she caught them lacking, and she mains the dynamo roller
Shes the type of person who has anger issues and probably has tried anger management classes and failed-
she probably doesn't give herself a break and constantly does things that requires real work and it's rare if she drinks anything but soda or energy drinks and actually gives herself more than a minute to relax