Bail Organa was present during the climactic end of Star Wars: Episode III - Revenge of the Sith, and there can be no doubt he was aware of Darth Vader's true identity.
Thrawn learned that Anakin Skywalker and Darth Vader were the same person during a mission with Vader, but kept the secret to himself. Thrawn's knowledge of Anakin's history explains his surprised reaction to hearing his name in Ahsoka episode 7 and likely gives him an advantage against Ahsoka Tano.
there is nothing in canon that states. whether rex found out that anakin was vader or not. so it's completely up to you and how you feel. that could be changed as we get ahsoka here.
Star Wars is finally exploring Leia's emotional reaction to the revelation Darth Vader was really her father - as her identity is transformed. Star Wars has finally revealed Princess Leia's reaction to learning Darth Vader was her father.
What's Anakin's relationship with Bail? There was no 'relationship'. They knew each other, they worked together a couple of times but that was it. They got along well the handful of times they worked together but Bail was closer to Padmé and Obi-wan, not Anakin.
Every Star Wars Character Who Knew Anakin Was Darth Vader
Was Bail Organa a good guy?
With the hope that they could restore democracy to the galaxy, Organa became an architect of the early rebellion against the Empire and the eventual founding of the Rebel Alliance. Though they did not live to see the Empire's defeat, Organa and his wife were remembered as heroes and martyrs of the Galactic Civil War.
Kitster was the best friend of Anakin Skywalker on Tatooine, but he was also a slave—property of Gardulla, who was ever threatening to sell him to the glitterstim miners if he didn't "shape up." Both boys (then unaware of the true nature of that order) once revered the Sith based on a holo-recording they had seen ...
Darth Vader only learned he had a daughter in Return of the Jedi - but there's no evidence he realized she was Leia before his death and redemption. Darth Vader may have never known Princess Leia was his daughter in Star Wars and never cultivated a relationship with her, even when he was a Force ghost.
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.
Summary. 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.
Star Wars Theory: R2-D2 Didn't Know Anakin Skywalker Became Darth Vader. R2-D2 served Queen Amidala and later Anakin Skywalker, accompanied by C-3PO. Unlike the golden protocol droid, R2-D2 never had a full memory wipe, so he was well aware of all events that happened around him.
Darth Maul and Darth Vader never met in the Star Wars canon, although Maul and Anakin Skywalker were heavily involved in key events of the Clone Wars. That includes the Siege of Mandalore, in which Anakin would have participated had it not been for the Chancellor's kidnapping.
Despite seeing Vader as an idol, Kylo conveniently ignored his grandfather's redemption. He was well aware of what happened, and it's likely Luke himself who told Ben about the events of Star Wars: Return of the Jedi.
Darth Vader's true identity as Anakin Skywalker was a highly guarded secret, known only to a select few individuals including Palpatine, Obi-Wan Kenobi, Luke, Han, Leia, R2-D2, C-3PO, Master Yoda, Bail Organa, Ahsoka Tano, Darth Maul, Grand Moff Tarkin, Grand Admiral Thrawn, Jocasta Nu, Ferren Barr, Verla, Reva, ...
Thrawn recognized that Anakin. and the emperor's dark enforcer, Darth Vader, shared uncanny similarities. But unlike most, Thrawn showed no fear of Vader ominous presence. In fact, he respected the Sith Lord.
the novel tarkin, written by James Lucino, confirmed that Grand Moff Tarkin. knew the true identity of Darth Vader. having identified anakin's lightsaber skills, military strategy, and interactions with his stormtroopers and the Sith, he was smart enough to not. share that information with anyone else.
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.
To answer the original question, I'm pretty sure that R2 never knew that Anakin became Vader. He wasn't there when Anakin was named Vader, he didn't know what happened on Mustafar. All he knew is that Anakin told R2 to stay with the ship, and that was the last time R2 saw Anakin.
However, one theory argues that Obi-Wan did recognize R2-D2, but he chose to pretend not to in order to avoid telling Luke the full truth. This would explain certain signs of familiarity between the Jedi and the droid and fit Obi-Wan's pattern of subtly lying to Luke.
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.
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.
Despite this ambition, Pestage was one of Palpatine's closest and most loyal servants, and was said to be one of the few people who truly knew him. He was entirely loyal and dedicated to his master, and Palpatine considered him to be the most trusted of his advisors and a good friend.
