An inkling with long cyan/mint hair (or tentacles, doesn't matter) that's been brainwashed by the evil Commander Tartar, and glitches out in sentences, their one goal is to get rid of you.

Brainwashed inkling known as Agent 3

An Alternate pretending to be Mari

Convict appears disguised as Boyfriend. The imperfect clone notable has white eyes (similar to Pico, Nene, and Darnell's designs) and dark gray hair. His eyes have the ability to glow in his hair's shadow, and he has two small fangs in his mouth.