Kieran is a slender young boy with yellow eyes and black hair with violet highlights. His accessory on his head is a yellow headband and his outfit is a collared blue shirt with a red tie, white and blue jacket a yellow backpack, a red thumbless glove, white shorts with two stripes on the legs, one white and one blue, matching blue socks and red and white shoes. He is seen with his eyes being half-closed and mole on his neck.