Stormtroopers appear in the Star Wars series of films. They serve Emperor Palpatine and Darth Vader. They are noted for having poor aim once the empire began recruiting rather than using clones. Despite their professional military training and noticeable combat effectiveness against less important characters, they are incapable of seriously injuring or even hitting the main protagonists. They also appear unrealistically vulnerable despite their armor, falling down, apparently dead, from a single shot to the shoulder or abdomen.