Simeon Darkmoon, also known as Simeon Jammer, was a Human male that was born on Rhen Var in 22 BBY. He was the son of Bruce Jammer and former Jedi Knight Shyla Spearrunner. He began his training in 17 BBY. After 17 BBY his name was changed to Darkmoon, to throw off the trail of the Human Imperium, and his middle name was excluded in public records. He continued to train in the Jedi arts and joined his father on many missions as a teenager.