ap'n Cuttlefish is a decorated hero who fought in the Great Turf War between the Inklings and Octarians as the leader of the Squidbeak Splatoon.

Agent 3 is young and tomboyish and enjoys spending time with her pet smallfry.

Marie is seemingly quieter and not as excitable as her cousin, and usually only gives a half-smile, if at all. She can be sarcastic from time to time, and is slightly prone to complaining, but is usually in a mild mood. Overall, her disposition is laid-back and friendly, although she can be grumpy sometimes. She is also an expert at doing impressions.
She dislikes overly-thrilling activities and can even be somewhat lazy.

Lazy

Agent 8 is not very intelligent as she is still learning about the outside world. She is a curious goofball but is also very kind and helpful.

Callie is very cheerful and excitable, and usually sports a grin on her face. She values her bond with her cousin Marie, with the two having been inseparable since they were young. As children, they enjoyed star-gazing and playing tag together. She is particularly attentive to Marie's changes in mood, even noting when the latter wants to drink a latte based on expression alone. When by herself, however, Callie can become upset and prone to overthinking.

Captain 3 is a rather serious and stubborn person, but is kind when you get to know her. She doesn't smile as often as her colleagues.

Serious

Agent 4 is a joker who usually posts memes in the groupchat. She isn't as serious as her colleagues, but is actually quite intelligent due to the time she devoted to her school studies. 