Caleb Knolar was a Human male officer serving the Galactic Empire during the time of the Galactic Civil War. His role involved gathering credit contributions from individuals who sympathized with the Empire's cause.
Following the Battle of Yavin, Major Caleb Knolar found himself stationed at a small Imperial garrison situated in Bestine, the capital city of Tatooine. At this post, Major Knolar's duties included accepting credit donations from various sources to aid in supporting the Empire's war efforts. In the year 1 ABY, he was the recipient of a substantial donation of one million credits from an unidentified spacer. To acknowledge the donor's generosity, Caleb designated them as a "Patron of the Empire".
Caleb Knolar existed as a non-player character within the 2003 video game Star Wars Galaxies, a massively multiplayer online role-playing game. The game was developed by Sony Online Entertainment and published by LucasArts, before its servers were shut down on December 15, 2011. Major Caleb Knolar's inclusion in the game occurred with the release of Game Update 9 on April 30, 2009. He was one of three NPCs, along with Lt. Jarad Gastin and Ozzmos Roberts, that were added with the update. These NPCs served as credit sinks in order to remove currency from the game's economy and combat inflation. Players who donated one million credits were awarded the title "Patron of the Empire."