Kolie is a gray koala with large ears similar to Elly's and with white inside, and a pale gray patch under his black, capsule-shaped nose. He wears a black shirt, navy blue pants, a yellow jacket secured by a brown belt with suspenders, and a yellow hard hat between his ears. A portion of the right side of his face as well as his right ear are covered in oil. His eyes have black sclera, but his right eye has an orange iris and black pupil, and the other green. He has spiders living in him.