The Tarkan are humanoid,with possibly arthropod features as well. They have purple skin and multiple eyes, and stand at roughly six feet in height.
The tarkan are widely renowned for their positive effect on the galaxy, as many groups have aided helpless sapient races when no others would, and one group called the Tarkan Freedom Fighters aided a world that was infected by a plague and placed under quarantine.
Despite this, there are splinter factions that try to carry out their own agendas. They are regarded as pirates.