Stone

Stone appears to have a pale skin tone. His black, fluffy hair is accompanied by sage green eyes with a yellow sclera, most likely the result of excessive alcohol consumption. He is often spotted clad in a black turtle neck, black shoes, a gold pendant, a grey jacket with a darker hue on the inside, a black belt, and light grey ripped jeans.

Stone is the most pragmatic member of the crew, though he is mainly portrayed as aloof and apathetic. Furthermore, he is seen drinking exorbitant amounts of energy drink inside of alcoholic bottles in both The Animated Pilot and The Thesis Film. Because of this, it is safe to assume that he has a problem regarding getting drunk off of his allergies to the drink. Nevertheless, Stone is shown to have a soft spot for those he considers his friends; he uses his ideas and wit to help them whenever he can.

Stone is the emo one. He's quiet, grumpy, and he's drunk about 90% of the time. He argues with Vinnie a lot, and is the Squidward to Skipp's Spongebob. Despite being the way he is, he genuinely cares for his friends but tends to hide his feelings through drinking.

Relationships

Skipp

Skipp’s and Stone's friendship is slightly one sided (on Skipp’s part) However, they seem to think well of each other.

Vinnie

Vinnie and Stone are shown to be somewhat rivals. However, they are shown to think highly of each other and are portrayed as friends.

Avrille

Avrille and Stone are siblings. They are shown to not get along well as it is implied Avrille used to experiment on him with unknown motives.

Pebble

Pebble is a hallucination, serving as the "anti-Stone"/polar opposite to Stone, that mostly likely is a result from Stone being Avrille's "lab rat". He only appears when Stone has too much candy and can only be seen by Stone himself. According to official art, Pebble seems to mess with Stone's mind and torment him, leading Stone to despise Pebble. However, it is not stated how long Pebble has stuck with Stone since the experimentation.

Tre

Although not much is known about their history, it seems, according to official art, that Tre and Stone have a specific disliking for one another, potentially since childhood. Whether this dislike is just simple rivalry or actual hatred is not stated.

Past

Although not much is currently known about Stone's past, it is said in the pilot episode that Stone was initially lost alone and cold in the rain, seemingly abandoned; until he was found by Skipp and Vinnie. It is unknown if he ran away or was simply abandoned. He is implied to have been from a rich family, with Avrille being his sister.

in one old arts of zeddyzi on tumblr about Stone's past it looks like he was coming out of a cage with him asking Avrille on when are they going to be finished. It implies that he may have been experimented on by his sister in the past, which may explain the existence of Pebble.