A Tragic Hero

The Tragic hero in this story is Darth Vader. Although, he may seem very evil in the episodes, he was once good. The reason he turned evil was because he wanted more freedom and power. This meant that he had to turn to the dark side to receive this.
A belief in his own freedom: this was when he wanted to be free and do so by turning evil. He faced many things that he had to accept because of the choice he made to turn. Like, Leia's death and turning against friends.
A supreme pride : He was very arrogant and full of pride by wanting to have all the ultimate power and to rule over all. He wanted to be better than the rest, but that was the wrong thing.
Capacity for Suffering: He did suffer because of his choices and actions. When he became Vader he had to give up a lot, but he did so so he could gain power. He had to give up his best friend and felt guilt over Leia's death. Later he shows that he has forgotten a the past because of his stubborn decision. Still though he could change his decision at any moment, but does not.
A sense of commitment: He was fully committed to the dark side. He wanted all of it, but he couldn't have it all without some sacrifices. He did not care what the sacrifices may be.
Vigorous Protest: He would say that he was right. His decision was the right choice, but he was only hurting himself and others by doing so.
Transfiguration: At the end of episode III Luke is pressing Vader to come back and realize that he is his father, but he is not listening. He finally starts coming back around and saves Luke from the emperor and kills the emperor. Vader finally came back to the realization that he needed to turn back the the good side.
Impact: This change to the dark side not only impacted Vader, but also his loved ones and friends. Luke knew there was good in him and he wanted to change him back. Luke found he was right although it took a while he finally came around and changed back.