Jax appears to be a purple-colored cartoon rabbit. He has long purple ears on top of his head, and his overall build is tall and slender. He 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. Jax wears fuchsia-colored overalls and yellow gloves. Jax is a mischievous, sassy, impulsive, egotistical, and brazenly condescending individual, and rarely shows empathy.