Wex Dafid Wex " TIE - Die " Dafid was a commander in the Alliance to Restore the Republic who served as Starfighter Command ' s tactical training officer on the Mon Calamari Star Cruiser " Independence " during the early Galactic Civil War . During his time as a pilot , Dafid flew 150 combat missions for the Alliance , which left him with a three - inch scar on his cheek and a mechanical prosthetic in place of a lost hand . He also gained an understanding of tactical flying , which aided him in his career as an instructor , though his appearance , and intense personality , often intimidated those he trained . Biography . Wex Dafid served as a pilot with the Alliance to Restore the Republic and survived 150 combat missions before retiring from active duty and taking a position as a training officer . Little was known of Wex Dafid ' s early career with the Alliance among those he trained during the early Galactic Civil War . Stories circulating among rookie pilots told that he had ignored practically every rule of combat and was almost killed on several occasions . Though these were only stories , his early career left him with a three - inch scar on his cheek , a mechanical hand and the nickname " TIE - Die . " By 0 BBY , Dafid was serving as Starfighter Command ' s chief tactical training officer aboard the Mon Calamari Star Cruiser " Independence " , having the rank of commander and an office near the ship ' s simulator room . Dafid oversaw the training of many recruits , including the Agamarian s Keyan Farlander and Sunnar Jan - lo , taking them through simulated missions and teaching the lessons they would need to stay alive in combat . Rarely were pilots allowed near a real starfighter until they had completed every training scenario to Dafid ' s satisfaction . Keyan Farlander was a rare exception , entering active duty on General Jan Dodonna ' s orders after achieving near perfect simulator scores , even though Dafid felt the young pilot was not ready . After leaving Dafid ' s training , pilots often entered service in one of the " Independence " starfighter squadrons , though some later moved to other assignments . In addition to training recruits , Dafid also retrained those pilots who had demonstrated weaknesses at certain skills . Personality and traits . Dafid was a tough , no - nonsense officer whose early experiences in combat were rumored to have taught him the importance of proper tactical flying . His often intense personality , combined with the three - inch scar on his cheek and his mechanical hand , the strength of which he struggled to gauge , ensured that the young recruits were often intimidated by the man . As he first examined Farlander ' s class , observing each pilot in turn while muttering to himself , Farlander ' s first impression was that Dafid was a " nut case . " Nevertheless , Dafid was a competent instructor who cared for the wellbeing of those he trained , and was determined not to let them enter combat until they were ready . Every training mission was designed to teach a specific lesson and Dafid did not care how many attempts it took trainees to complete them , as long as they demonstrated that they had fully understood the lessons being taught . He tended to refer to his pilots by their last name , only calling Farlander by his first name after the pilot was promoted from his class . He did have a sense of humor , though the intimidated recruits in his class rarely laughed at his jokes . Behind the scenes . Wex Dafid was created by Rusel DeMaria for the 1993 book " " , which presented the story of Keyan Farlander , the player character in the game " " . In the book Dafid serves as the tactical training officer aboard the " Independence " while Farlander is undergoing training . In the game , however , Farlander ' s tactical training takes place away from the " Independence " , at an EF76 Nebulon - B escort frigate which serves as a training center , and the scenario briefings are given by General Dodonna .