Antares has a white outfit. He is a doctor. He loves inventing, and his favorite food is vegetable cubes. He dislikes Martian flu season.
In the January-February 2001 issue of LEGO Mania Magazine, he was described as such: "Antares is the Martian inventor who created the Aero Tube Hangar. When his inventions don't go well, Antares gets angry. His face turns as red as Mars."