Paintbrush is sometimes known as the hothead of Inanimate Insanity. They have anger issues and are doing their best to keep them under control. They are Nonbinary and use they/them pronouns. They have a crab named Baxter, given to them by their best friend Lightbulb. They are roommates with Fan, who was on the same team as them in Inanimate Insanity Season 2. At first, they didn't get along the best with their roommate, but lately they have been feeling romantic feelings towards him.