After the battle, Okko and two other Ysanna shamans were trapped in carbonite by the forces of Emperor Palpatine, who was seeking to use the tribe as a means to halt the genetic decay of his last clone. Luke Skywalker soon discovered he was taken to Vjun to the clone laboratory at Bast Castle, but unfortunately, the carbon slabs did not have the controls so he hoped to confront the Emperor and free him. But luck was not with Okko as Palpatine was killed before he could tell the secret to opening the slabs.
In the audio drama adaptations of Star Wars: Dark Empire II and Empire's End, Okko was voiced by John Cygan.
In the audio drama adaptations of Star Wars: Dark Empire II and Empire's End, Okko was voiced by John Cygan.