Hailing from the planet Devaron, Devaronians were a species of sentient humanoids, characterized by two legs, a torso, a single head, two arms with hands, fingers, and an opposable thumb. The Devaronian head featured a nose, a mouth filled with pointed teeth, and two forward-facing eyes, which notably came in shades of black, blue, brown, dark brown, green, pink, red, and yellow. Both sides of the face were flanked by two pointed ears that stuck out slightly.

The species had two sexes, male and female, which were dimorphic. The males had short horns growing from the top of their heads, while the females were hornless[8] with small vestigial bumps on their foreheads[2] along with a full head of hair.[9] Some female Devaronians possessed a thin coat of gray fur on their body.[15] Males Devaronians were bald— however, some of them grew sideburns as well as beards.

Devaronians had black blood, and were silver-based due to the unique blood filtration and cleansing system of the species. Processed through two livers, their bodies were constantly cleansed of toxins and carcinogens which allowed them to be highly resistant to poison and consume foods toxic to other species. To this end, sulfur was used as a stimulant on Devaron to enhance speed and strength, because inhaling it caused the substance to enter the bloodstream rapidly. Their livers struggled to eliminate sulfur from their system, meaning that long-term use could be dangerous. Their skin was also immune to fire and extremely high temperatures.

Devaronians lived under a matriarchal government on their homeworld; though males weren’t prohibited from holding positions of power, few desired to do so. The biological dimorphism of the species carried over into their culture, wherein females tended to be more settled and serious minded, while males longed to wander the stars. Devaronian males were extremely dedicated to their families despite their wanderlust, and were known to send their earnings they accumulated abroad back to their families to support them.

Force-sensitivity was found in higher frequencies among Devaronians than in other species. Despite this, no strong Force-based tradition emerged on Devaron or among their colonies. The Jedi Order established the Temple of Eedit on Devaron to train the Forceful children there, with females making up the larger percentage of students as males desired to travel more than the Jedi culture permitted.