Kal-Don was a famous Jedi Master stationed at the Jedi Temple on Coruscant. During his tenure as Jedi Master, Kal-Don accepted the infamous Cerean, Ter-Idi as his Padawan. Running through Ter-Idi was an apathetic streak towards the lure of the dark side, something that concerned Kal-Don and the other Jedi Masters. Their worst fears were realized when Ter-Idi suffered an incapacitating injury at the hands of an assassin attempting to murder Master Kal-Don.