Kammi Tolstor was a Pantoran Jedi Knight with Mandalorian heritage, his father being a Mandalorian who fought and died for the Galactic Federation of Free Alliances at the Battle of Botajef, a fact which he learned from a friend of his father, the Rellarin liuetenant Hyokee Doone. He was one of thirteen Padawans of the elderly Jedi Master O'choa Pyne, and like his friend and fellow Padawan Plato Mahn, he was a Jedi weapons specialist, having mastery of both his own lightsaber and a unique double bladed lightsaber which featured a circular handguard. Shortly following the conclusion of the Sith-Imperial War, he and his fellow Padawans under Pyne's tutelage abandoned the war for the obscure planet of Kluistar, a decision which Tolstor was not happy with.