He is voiced by Ben Jones.
As his name suggests, he's a living skeleton, so he doesn't have skin nor organs. A purple, hexagon cut gemstone is embedded in his chest, which may be the source of his life and powers. When he's feeling strong emotions, he gets enveloped by a purple fire. Inside his eye sockets are purple pupils.
He wears a red cape, gray shoulder pads, and a pair of maroon gloves and boots.
He seems to be straightforward and honest when talking to others, and is capable of being open with them sometimes even if he is sometimes defensive. He gets easily aggravated when annoyed which makes him unable to focus on tasks.
He hates everything about the frame store he works at, besides the company of his best friend Brandon, who also works there. Even though he hates his job, he also tries to do a good job at it and is usually very responsible, though it seems that he's just a responsible person in general.
Despite the occasional acts of rudeness or selfishness, he seems to have at least some kind of morality, ethics or principles. Due to this sense of right and wrong he has, it's easy to assume that he is at least usually well-intentioned in his actions.
It is confirmed that he is jealous of the cool adventures K.O., Rad, and Enid get to go on all the time, which makes sense considering how boring his job is. He has no talent with magic, but he’s taking night courses at the community college in hopes of getting better.
He enjoys filming the heroes of the Bodega when they battle the Boxmore robots and uploading the videos he takes, presumably to Social Media.