The Knuckles Clan, or Knuckles Tribe, was a warrior caste of Echidnas that lived thousands of years ago. At some point they became involved in a devastating war, and their violent attempts to gain greater power led to their annihilation by Chaos.
The Knuckles Clan once lived in an area of the world found near the home of Chaos, who protected the Master Emerald and Chaos Emeralds and the Chao Garden in which they were found. For a time the clan lived peacefully with its neighbors, but the warmongering chief Pachacamac sought to seize more land for his people and led them into war. In a bid to give him the strength to destroy any opposition, he and his men attack Chaos' home and the Chao living there, despite the attempts of Pachacamac's daughter Tikal to stop them. Their actions enraged Chaos, who destroyed most of the Knuckles Clan before being sealed away in the Master Emerald by-and with-Tikal. These events resulted in the creation of Angel Island, with the remnants of the Knuckles Clan civilization appearing either there or on the surface as the Mystic Ruins. Tikal would become a spirit, and the clan's actions resulted in the race declining until only one surviving member was known to exist: Knuckles. (VG: SA/SADX)
- The Knuckles Clan originated from the video game Sonic Adventure, and in the Post-Super Genesis Wave Timeline their history in the comics is identical to that of the game. Unlike in the comic, they are the first set of Knuckles' ancestors to be explored in game canon, and are the first Echidnas besides Knuckles to ever been seen in the games.