Adigan is the lord of Dur, as mentioned in Intruder. He is considered well-disposed toward Tabini and his policies.

His son and heir is Reijiri, an adventurous young man who owns an open-cockpit yellow airplane, which he is willing to fly just about anywhere. Cajeiri greatly admires him for this.

The Dur clan lands are where the Gan, an aboriginal people of Mospheira, were settled after the island was ceded to humans. The proposal to give the Edi and the Gan lordships and seats in the aishidi'tat means that Dur would need to cede lands to the Gan for their holding. As of Intruder, Adigan appears amenable to this.

One member of Adigan's personal bodyguard is named Jusari.