Lieutenant Jatos was an officer of the Peacekeepers who served directly under Grand Chancellor Maryk, both at Peacekeeper Strategic Command and in the Grand Chancellor's battle group. During the Peacekeeper/Scarran War, Jatos was deeply concerned about the heavy losses Peacekeeper forces kept suffering.
When Maryk was assassinated by Commandant Mele-on Grayza, Jatos served under her command. He served on the bridge of her command carrier during the Battle of Qujaga, and saw the devastation of the wormhole weapon constructed by John Crichton.
Jatos was present at the signing of the treaty that ended the war, and continued to serve under the Grand Chancellor of the Peacekeepers -- no matter who it was -- for quite some time thereafter.
Jatos is derived from Farscape: The Peacekeeper Wars.