Jim has recently acquired a new pet, a "roundhead" called Willis (voiced by Pat Fraley) with the parrot-like ability to mimic human speech and record conversations. When Willis needs to move quickly, he extends his limbs which gives him a quadrupel appearance, and can climb virtually anything. Willis is small, furry, and playful, can survive both on the surface of New Aries and the Earth-like atmosphere of the colony, and has some sort of connection with the Locals on an almost empathic level.
