Mars is generally outgoing and friendly and is shown to encourage and inform other celestial bodies. When he meets Titan, he lists off his geological features and admires him for his interesting physique, and he also encourages Mercury to stand up for himself when Venus bullies him. He can be ignorant and arrogant.

He has short orange hair which is tied up. and wearing a light orange long sleeve crop top turtle neck sweater and baggy pants, showing their body that has scarred scars.