Darth Vader's failure to recognize Leia as his daughter in Star Wars: A New Hope stems from George Lucas's late decision to make Luke and Leia siblings. Leia's Force abilities and her lack of awareness of her true identity also contributed to Vader's inability to sense their familial connection.
Vader was hunting down the pilot who blew up the Death Star, and hired Boba Fett to find them. Boba was unable to, but he did give Vader a name: “Skywalker.” This, combined with his knowing Luke was Force-sensitive and had been trained by Obi-Wan, was what made him realize the truth.
Instead of being in the life suit, Vader looks like an older Anakin who never received the devastating injuries, and Padmé and Luke (who struck down Palpatine) are by his side. It's during these visions Palpatine realizes Luke - who he only knew as the Rebel who destroyed the Death Star - is Anakin's son.
Alderaan's princess knew she had been adopted by Bail and Breha Organa after the Clone Wars, but she had no idea who her parents were. That was until Luke Skywalker told her the truth - that he was the son of Darth Vader, and that she was his sister.
What if Luke JOINED Vader When He Said I AM YOUR FATHER? (AI GENERATED)
When did Vader realize Luke was his son?
In the post-2014 canon universe, the story that reveals Darth Vader discovering Luke Skywalker's identity (and thus the fact that the Death Star's destroyer is his son) is issue 6 of 2015's Star Wars comics by Marvel, which takes place sometime shortly after A New Hope.
R2-D2 was present when Padmé gave birth to Leia and Luke, so he knew Luke was Anakin's son – but what he didn't know was that Anakin became Darth Vader. In addition to that, Anakin's fall was surely a painful event in R2-D2's life, one that he definitely wouldn't like to remember or even talk about.
Returning to Dagobah to complete his training, an ailing Yoda told Luke the terrible truth that Vader was his father, Anakin Skywalker. Rather than destroy his father, Luke sought to bring him back into the light. At 900 years old, Yoda passed away, telling Luke that there was another Skywalker.
The two recognize Luke's similarities to Anakin and try to prevent him from sharing his father's fate, but they let him remain Luke Skywalker instead of having him go by Luke Lars out of respect for his grandmother, Shmi Skywalker.
Leia's Force abilities and her lack of awareness of her true identity also contributed to Vader's inability to sense their familial connection. Vader's denial of Anakin Skywalker's legacy and his fear of getting hurt again prevented him from realizing the truth about his children until later in the original trilogy.
Many fans declare that Luke won the confrontation because he nearly killed Vader, but that's technically not true. Vader was far more powerful than Luke and easily could have bested him. So, knowing that Vader wasn't allowed to kill Luke drastically changes the equation.
More curious, however, is the fact Luke Skywalker - generally seen as the greatest Jedi Master of all - was clearly unaware of Palpatine's resurrection. That's particularly disturbing given the Emperor seduced Ben Solo to the dark side under Luke's watch.
Though Luke's surname was "Skywalker" in Lucas's 1973 treatment of The Star Wars, it was changed to "Starkiller" in subsequent drafts, at one point featuring in the title (The Star Wars: From the Adventures of Luke Starkiller).
Luke, they added, was inspired by the Greek “leukos” meaning “light.” Which is meant to be the opposite of Darth Vader, but try saying leukos out loud. Go on. Sounds a lot like “Lucas,” right?
It was highly unlikely that the Grand Inquisitor, Reva, or Darth Vader were ever going to hear anything about Kenobi from Tatooine, and simply changing his name from Obi-Wan (most likely an uncommon name in Tatooine) to Ben would already help him blend in with the locals.
Din Djarin has been teaching Grogu how to navigate the galaxy, and Grogu could honor his father by becoming a bounty hunter in the future. Grogu does not have to be the new Mand'alor or a Jedi Master. Instead, Din Grogu could make his own through the galaxy, perhaps assisting the New Republic as a bounty hunter.
Shmi informs Qui-Gon that Anakin has no father, leading Qui-Gon to suggest that Anakin is a product of midi-chlorians (Force-imparting microorganisms). As the film progresses, Anakin leaves Tatooine to begin his Jedi training.
Over the next decade, the galaxy was on the verge of civil war with entire star systems—led by Count Dooku, Yoda's one-time Padawan—threatening to secede from the Republic by 22 BBY.
secondly, in Legends, R2 was given programming that actually restricted him. from sharing any information with Luke or Leia. about their parents or relation to one another. this was all part of the plan. to conceal this information from the twins.
in the Dark Horse comic series star Wars Tales, which is now part of legends, it's revealed that Darth Vader did recognize C. 3PO on Cloud City. when 3PO was shot by Stormtroopers, his parts were brought before Vader. because the Imperials thought he could hold valuable.
Upon being told by Obi-Wan's force ghost that he had a sister, which Yoda had referred to as “another hope”, his insight through the Force gave him the name of Leia, which was immediately confirmed by Obi-Wan.
First, he didn't know of Luke, at the time. (novels notwithstanding) He felt Luke, presumably, the first time, during the Battle of Yavin. “The force is strong with this one.” Luke was so raw in his knowledge of the Force and Vader was so detached, at the time, from Anakin, that he wasn't able to feel the connection.
So, how much did Luke actually know about Anakin Skywalker? For his 19 years being raised on Tatooine, Luke got told little about his father because Owen Lars thought it best he knew as little as possible to keep him safe from the Empire and away from the Jedi Order.
Ben Solo was a human male Force-sensitive who fell to the dark side of the Force as Kylo Ren—the "Jedi Killer," master of the Knights of Ren, and ultimately the Supreme Leader of the First Order—but he returned to the light side shortly before his death.
