He didnt change it. Darth Sidious did when Anakin became a Sith. It is traditional for the Sith to bear the name "Darth."
Anakin Skywalker and Darth Vader are the same person (Darth Vader being his Sith name). He wears the mask due to a horrible injury that means he needs the mask to breath
His name is Luke Skywalker because Darth Vader is really Anakin Skywalker.
He first appears under the guise of Darth Vader in the original film trilogy; Star Wars: Episode VI: Return of the Jedi and the subsequent prequel films present Anakin Skywalker, a conflicted Jedi Knight who falls to and returns from the dark side of the Force. Before his fall to the dark side, Vader fathers both Luke Skywalker and Princess Leia Organa; Luke ultimately redeems his father in Return of the Jedi, and Anakin sacrifices himself to save his son.
Anakin Skywalker was secretly married to Senator Padme Amidala. When he had a vision of her dying in childbirth, he "made a pact with the devil" (the devil being Palpatine/Darth Sidious/the Emperor.) When Padme learned what Anakin had done, her heart broke so bad that she lost the will to live, but she lived long enough to give birth to Luke and Leia
Yes he is related to her, ....Anakin/Darth Vader is Leia's Father....Leia never knew until "return of the jedi".....in the Skywalker family there is ........ Anakin Skywalker/Darth Vader Padme Amidala (Skywalker) who was already dead Luke skywalker Leia Organa (Skywalker)
Anakin Skywalker aka Darth Vader
Anakin Skywalker
Pre-Darth Vader, we all know he went by the name Anakin Skywalker. A common nickname for the child Anakin was "Ani". Watto commonly used it.
The Star Wars character is Darth Vader (Sith name for Anakin Skywalker).
Darth Vader isn't a Jedi Knight. His very name means that he is a Sith Lord not a Jedi Knight. From the second Anakin Skywalker is dubbed Darth Vader by Palpatine Anakin Skywalker ceased to exist and Darth Vader was born. That was also the second that Anakin was no longer a Jedi Knight, he was officially a Sith Lord. So your question is faulty.
Before turning to the dark side, Darth Vader was a Jedi Knight known as Anakin Skywalker. His name was changed to Darth Vader when he betrayed the Jedi and became a Sith.
He first appears under the guise of Darth Vader in the original film trilogy; Star Wars: Episode VI: Return of the Jedi and the subsequent prequel films present Anakin Skywalker, a conflicted Jedi Knight who falls to and returns from the dark side of the Force. Before his fall to the dark side, Vader fathers both Luke Skywalker and Princess Leia Organa; Luke ultimately redeems his father in Return of the Jedi, and Anakin sacrifices himself to save his son.
The character name is Darth Vader (Sith name of Anakin Skywalker).
Anakin Skywalker and Darth Vader are the same person (Darth Vader being his Sith name). He wears the mask due to a horrible injury that means he needs the mask to breath
His name is Luke Skywalker because Darth Vader is really Anakin Skywalker.
Darth Vader's real name is Anakin Skywalker, as revealed in the Star Wars film series.
He first appears under the guise of Darth Vader in the original film trilogy; Star Wars: Episode VI: Return of the Jedi and the subsequent prequel films present Anakin Skywalker, a conflicted Jedi Knight who falls to and returns from the dark side of the Force. Before his fall to the dark side, Vader fathers both Luke Skywalker and Princess Leia Organa; Luke ultimately redeems his father in Return of the Jedi, and Anakin sacrifices himself to save his son.