Yranac was a Yridian information dealer, who spent some time doing business on the planet Dessica II in the late 2360s. He had one sister.

In 2370, he witnessed what he thought was Captain Jean-Luc Picard being vaporized with a disruptor in a local bar. Just as Yranac, for a price, was about to talk to William T. Riker, who was investigating Picard's disappearance, the bartender grabbed him and told him that he had too much to drink and should keep quiet. Riker learned from Yranac that the alleged murderers had moved on to the Barradas system. (TNG: "Gambit, Part I")