Gilad Pellaeon was an Imperial Captain on the Interdictor Star Destroyer, Palpatine's Fury. He was on the ship when they pulled Nathaniel Kenobi's ship out of hyperspace. Nathan force-persuaded Pellaeon to let his ship go and Pellaeon was punished by the Emperor for doing so.
When the Empire first attacked he was demoted to Ensign. After a failure to gain Darth Vader's goodwill, Pellaeon was demoted again to Private.
During the Battle of Toola, he found out that the Rebel Clones were using a communications jammer to keep them from sending out a distress call. He relayed it to Ensign Ozzel, who in turn gave it to Grand Moff Wilhuff Tarkin.