―Trig Longo's guess at the translation of Delphanian graffiti on the prison barge Purge[src]
The Delphanians were a sentientspecies noted for their scaly, claw-like hands and bellows-shaped noses. They came from the Delphania system, where they noted various tribal identities by piercing their protuberant lips. Delphanians sometimes added extra piercings after defeating a rival; in combat, their hands became dangerous slashing weapons. Delphanians were among the prisoners kept aboard the Imperialprison bargePurge in 1 BBY. Some of these imprisoned Delphanians formed the Delphanian Face Gang, headed at one point by Aur Myss.
―Wembly, a guard on the prison barge Purge, ordering Aur Myss to release a prisoner the Delphanian had grabbed from another cell[src]
At the front of the Delphanian skull,[4] the species' face featured a nose that resembled a flattened, fuzzy bellows, a chin, and flabby lips[6] around the mouth. The skull lay atop a neck.[4] Delphanians had feet and were quick runners.[6] At the end of their limbs, Delphanians had scaly hands[4] that looked like broad, flat claws.[6] They could use these to grasp objects[7] or make a fist,[8] but these manipulators doubled as deadly slashing weapons in combat. Some Delphanians had a rotund physique.[4]
The Delphanians were sentient, dividing themselves into various tribes, membership in which was indicated by metal lip piercings. The Delphanian Aur Myss added new piercings whenever he defeated a rival; the conglomeration jangled when he spoke. Delphanian laughter sounded like a hiss or plash to other species. At least some Delphanians could understand and speak Galactic Basic Standard,[6] although they had their own language, known as Delphanian, which they could read and write.[1] An injured Delphanian screeched in pain,[6] and an amused one giggled.[7] At least some Delphanians wore boots.[6]
"I requested a transfer just so I could be close to you. Greased the right wheels, you might say. The second they open these doors, I'm going to rip you and your brother apart with my bare hands. And that's just for starters."
―Aur Myss, to his rivals, Trig and Kale Longo[src]
By 1 BBY, several Delphanians were incarcerated aboard the Imperial prison bargePurge, where some of them joined the Delphanian Face Gang. That year, Aur Myss had risen to become the leader of the group. Myss's face boasted a perpetual, cockeyed smirk, although other prisoners disagreed as to whether it was a genetic flaw or the result of an accident. Delphanian thugs followed Myss about the ship.[6] Myss eventually came down with a sickness. When he frantically attacked the Human brothers Trig and Kale Longo, the latter killed him with a knife to the back of the skull.[4] Myss's body became reanimated as a zombie sometime later and followed the brothers onto the Star DestoyerVector.[8] When this undead Delphanian attacked Trig Longo, the Human leapt into a chasm; a hovercraft saved the Human, but the Delphanian zombie fell into the abyss.[16]
Joe Schreiber created the Delphanians for his novelDeath Troopers, published by Del Rey in 2009. The species and its associated Delphanian Face Gang act as minor antagonists to the story's two Human leads, Kale and Trig Longo. Death Troopers indicates that an individual named Sixtus Cleft had been the leader of the Delphanian Face Gang until his murder paved the way for Myss to take over. Despite Cleft's participation in the organization, the novel never explicitly identifies his species.[6] Authors Jason Fry and Daniel Wallace later placed the Delphanian home system in the Star Wars: The Essential Atlas Online Companion.