| Category | Heroes |
| Region | Ice Cap |
| Race | Black Slaadi |
| Gender | male |
| Title | Slaadi Lord of Neeth-Theen |
| Alignment | chaotic evil |
| Deity | Neld-Rac |
| Birthplace | Limbo |
| Born | 17 Dreamer 1844 HE |
Ushgergoon is the direct descendant of Anta'palos, the first black slaad of the Slaad Hexos.
In 1133, Ushgergoon passed through the Pinnacle of Chaos, becoming trapped on the world of Bal-Kriav. Pulled by entropic energies, he went north to Flux. Forty years later, he founded Neeth-Theen, an empire of all things chaos.
Ushgergoon wields a great sword called Oblivion.
In the Battle of Bone Hoof Canyon, my master waded into the midst of the Pig Tramplers, felling three and four with each swing. The enemies bodies broke apart into bits of earth, wisps of fire, droplets of water, and eddies of mini-whirlwinds. The enemy that did reach Ushgergoon and manage to strike him, had not the power or weapons to pierce his scaly black skin. Our master, the great lord of Neeth-Theen, could have single-handedly taken down all of the jara. The only thing that stopped him was exhaustion and boredom with the fight.
- Sabock Nurngar, Chronicler of Neeth-Theen - "1521 - Ushgergoon's Rampage"
In 1828, he mobilized his empire's entire fighting-age population, starting the Cinazan Front.
| Anta'palos | |
| Ushgergoon |