Astro is a light blue crescent waning moon. The left side of his face is black with a white star eye. He wears a cornflower blanket wrapped around his torso, obscuring his arms to the point where they are barely visible as faint furrows in the blanket. Astro is a quiet Toon who seems to only willingly socialize with ones he is closer or more comfortable with. He enjoys peace and quiet, and seems to at least mildly dislike anything interfering with those two things. 