Deimos is the younger of Mars’ two moons, an 11 year old who may be small, but usually the brains of the duo. While his older brother tends to draw more attention, Deimos is the quiet mastermind, often using him as cover for their schemes. Not that he’s a troublemaker, just a clever kid doing clever kid things. Most of his plans revolve around convincing Mars to let them stay up later or go on more adventures across the solar system. Think somewhere in the realm of a clever little brother character: energetic but not hyper, smart but not arrogant. Almost like a mix between a young strategist and a playful kid.