Like Skelly, Bonesy does not speak. But he appears to be friendly with other monsters.
Bonesy is a shorter skeleton. He wears a jean vest and fingerless gloves. Over his right eye socket he has a red lightning bolt tattoo. On top of his head he has several spikes in the shape of a mohawk.
His brother is Skelly. This is according to the "Welcome to Monster High" junior novel.
He appears to be friendly with most monsters but is commonly seen hanging out with Skelly.