What is the origin of Darth Vader's face scar?
At the end of Return of the Jedi, when Luke takes Vader's helmet off, Vader has a big scar across his face, and, if I remember correctly (please correct me if I am wrong), Vader never got that scar when battling Obi-Wan at the end of Episode III.
So what battle did he get this scar in? Someone must have been a challenge for Vader sometime or other?
What scar? Looking at the scene where Vader is unmasked to Luke, he has lots of visible burnt flesh scarring but no prominent scar like the vertical scar over his right eye from Episode III, however this also to was not visible in _Return Of The Jedi_ unmasking scene. For reference: http://i.stack.imgur.com/Ayltc.png
@Jared I really do remember him having a huge scar on his face before the revamps. I will have to go home and confirm this now. But either way the scars that he does have in that image don't go together with the once from episode III.
There's a good chance you're thinking of the scar on the back of his head that showed in the scene in Ep. V when he's in his meditation chamber and the top rises and we see a scarred head before his helmet is lowered into place on his outfit.
@TangoOversway You know what I could be thinking of the scar on the back I may have just got them mixed up. Thanks
@JPow3 That was the explanation that EU gave before the prequels contradicted it. Palpatine was, if anything, older then he looked. His face in the last part of SW III and the Original Trilogy was a result of the damage he took when Mace reflected his Force lightning back at him. Vader's was from the burns. There is no Canon evidence that the dark side deteriorates the physical body. As much as I love the EU, this is one of many ways in which it is broken. Disregard that aspect, please.
Fortunately, they paid attention to those details when they filmed Revenge of the Sith.
As a reference, here is a screen shot of Vader in the Return Of The Jedi unmasking scene. You can see two big scars, one on the top of his head and one under his eye.
And here is a screenshot of Vader as he was burning. There are other frames where you see his face, but I chose this one because you could see the scar on the top of his head.
Finally, when he is rebuilt, you can see the scar under his eyes: