Jax appears to be a 22 year old, purple-colored cartoon rabbit whose design evokes the look of early cartoon characters, also known as "rubber hose" characters. He has long purple ears on top of his head. Jax has black eyes with square pupils, and his sclerae and teeth are both yellow. His teeth usually have a flat shape to them, but when his mouth is opened, his teeth appear sharp and jagged. He’s a mischievous, sassy, impulsive, and brazenly condescending individual, and rarely shows emotion.