Grindalids appeared humanoid when wearing protective armor.
Sentient with similarities to worm and insect species, Grindalids were native to Persis IX, a homeworld with a dense atmosphere that rendered them light-adverse. Because of this, their squinting, sensitive eyes were easily damaged on lighter worlds, and their photosensitive skin burned and blistered when exposed to direct sunlight. Prolonged exposure to sunlight caused a Grindalid to disintegrate into dust upon death. Some wore protective clothing when outside, consisting of articulated faceplates, flexible cowl armor, long coats, gloves, and full-seal armored coverings.
Grindalids hatched from eggs and lived in watery pools as youngsters. They had pale faces, squinting eyes, and large, curved heads. While seemingly humanoid in appearance while wearing armored coverings, Grindalids had tapered tail segments in place of legs. Some were capable of impersonating a humanoid walk through extensive practice. Grindalids possessed two primary, if stubby, arms, with many more pairs of shorter pincers running the length of their wrinkled, serpentine bodies. They were capable of living for long periods of time of up to over two hundred years.
Females fed and cared for young hatchlings in filmy watery pools, chewing up morsels of meat to feed to their baby worms. Grindalids were carnivores, eating vermin like vervikks and screerats.
Moloch wearing his mask
Some Grindalids were spiritual: Moloch believed in the promise of an afterlife with endless riches. Others adorned their bodies with trinkets and jewels: Proxima wore plates and rings down the length of her back.
In Grindalid culture, it was custom for a Grindalid to eat those who murdered a Grindalid. If the culprit was not found, the next being held responsible would be devoured instead.
Grindalids Moloch (left) and Proxima (right) with scrumrats (center)
During the High Republic Era, the Garavult Clan, a group of thousands of Grindalids led by Mother Fastidima, worked alongside the City Fathers, protecting the sewers and tunnels of Coronet City.
Following the fall of the Republic, several members of the species formed the White Worms, a gang of scrumrats in the slums of Corellia. The gang was led by the Grindalid crime lord Lady Proxima from her Den, assisted by Moloch. She issued orders from the watery pool in which she resided with her young hatchlings.
- LEGO Star Wars: All-Stars — "The Chase with Han/Escape with Chewbacca"