Jaffa warrior previously in the service of the Goa'uld Moloc. Aron was among the ranks of Jaffa that met with Ishta and Teal'c's resistance movement on the new Hak'tyl homeworld. His insistence that a strike on Moloc's could not wait concerned Teal'c that he could be a traitor in their midst.
When Lord Moloc himself launched a surprise attack on the meeting, killing or capturing all but Teal'c, Ishta and Aron, Teal'c believed Aron to be the informant. The following morning, after Ishta had been captured, Teal'c chose to take no more chances and disabled the Jaffa with a zat'ni'katel discharge.
When Teal'c was captured by Moloc's Jaffa, Aron proved his loyalty by sneaking up, and taking out, one of the soldiers, plus several other Jaffa warriors to help Teal'c get free. Back at the Stargate, Teal'c, before departing to save Ishta, supplied Aron with a human-made target sensor to guide two emerging missiles directly into Moloc's chest, killing the minor Goa'uld and ending his rule.
Aron later joined with other Jaffa leaders when a plan to retake the historic planet of Dakara was being toyed with. He showed his opposition to the plan to the others, but he did not win his argument. To his amazement, he was eventually standing on the surface of Dakara himself.
Sacrifices - Aron takes part in the secret meeting of rebel Jaffa to plot against Moloc's regime, not realizing that living through the firefight that interrupted it brands him as a possible traitor.
Reckoning, Part 1 - Aron shares his belief that Dakara cannot be taken by the resistance, but participates in the operation nonetheless.
Reckoning, Part 2 - Teal'c and Aron take a Ha'tak into orbit to defend their new world from Goa'uld and Replicator forces.
The Fourth Horseman, Part 1 - Aron is present at the meeting on Chulak when Garak arrives to give the resistance a fair chance to run.
The Fourth Horseman, Part 2 - Aron pilots a Goa'uld Ha'tak into orbit over Chulak, prepared to confront Gerak's forces who have converted to Origin.