EG-86 was a masculine GNK-series power droid that served the rebellion as a courier of vital information. Rebel Hera Syndulla dispatched fellow rebels Sabine Wren, Ezra Bridger, and the droid C1-10P to find EG-86 and take it to the Havoc Outpost, but their mission was nearly compromised by the bounty hunter Ketsu Onyo, who tried to gather the droid for the criminal organization called Black Sun. Onyo had a change of heart, though, and helped the rebels deliver EG-86 to the Havoc Outpost.