The skin tone of the Therns is identical to that caucasian humans from Earth; at a glance they appear as blue-eyed, blond-haired humans. Closer inspection reveals the hair upon their head to be a well made wig. They wear these as their bodies are entirely hairless, as it is considered disgraceful to not wear this wig. Up until they were exposed as frauds by John Carter, the popular belief was that they were descendants of the original White Martians, at odds with what the Black Martians, the Therns' greatest enemies, claim: Therns arose from a union of their kind and white apes. Generally, this race seems to wear more clothing than other Martian races, as members are noted wearing robes.