Gradient Joe is the most humanlike in the group, with the only non-human feature being a sphere with a radial gradient for his head. He wears basic clothing, grey-ish pants with a collared shirt and striped, navy tie. He does not like to speak. He is very clever. Instead of talking, he would communicate by writing on pieces of paper with a red marker. Joe also tends to express himself emotionally by his head, it is confirmed that his gradient head turned red when he is angry