During Palpatine's reign as Emperor, his apprentice's true identity was kept a secret, leaving only a few Star Wars characters aware Anakin was Darth Vader. Besides Obi-Wan, Master Yoda also knew the truth, as well as Ahsoka Tano, R2-D2 and C-3Po, and even Senator Bail Organa.
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, ...
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.
What happened to R2D2 after Anakin became Darth Vader?
After Skywalker turned to the dark side of the Force, the droid served Senator Bail Organa for a time in the Imperial Senate. Nineteen years following the purge of the Galactic Republic, R2-D2 played a pivotal role in helping the Rebel Alliance destroy the Empire's Death Star superweapon.
Why Didn't Darth Vader Remember C-3PO in The Empire Strikes Back? Star Wars Explained (Legends)
Why didn t R2-D2 tell Luke about Vader?
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.
But to my knowledge there's no evidence at all that either of the droids ever met Darth Vader nor recognized him. At best, 3PO may have learned this later in life while serving Leia. R2D2 most likely learned it when Luke returned to Dagobah after rescuing Han. It's otherwise not touched upon in canon.
Do R2D2 and C3PO know that Darth Vader is Anakin? Threepio had his memory wiped at the end of Revenge of the Sith. He doesn't even know Anakin was Anakin. In universe answer: Vader didn't share scenes with R2 or 3PO.
R2-D2 was part of the repair crew for the Naboo Royal Starship. He technically is owned by Naboo's elected royalty until Padme took him along for her senator duties. By the Clone Wars, Padme gave him to Anakin as she felt a droid like R2 was far more useful to aid Anakin.
Remember that this is the first (and only) time Vader saw C3PO after RoTS. Threepio was getting pushed into an escape pod by R2D2 by the time Vader entered their ship in ANH. Though he was chased throughout the original series, this was the only time Vader actually saw Threepio, again.
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.
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.
She senses Anakin when she reaches out to the pilot — and Vader realizes that Ahsoka, his former Padawan, lives on. In Season 2, Episode 18, “Shroud of Darkness,” Ahsoka's guilt manifests as a vision of Anakin, who's angry with her for leaving him all those years ago.
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.
You saw how Luke's attitude completely changed when he realised that was actually Yoda and so did Yoda's behaviour. As for the r2 thing, is incredibly likely he just suspected R2 had had his memory wiped several times since they last saw each other.
R2 *knows* that (nearly) all jedi died and that Anakin either died or disappeared because Obi-Wan comes to pick him up. He gives a long, sad beep when that happened. The answer is c-3po had his memory wiped at the end of revenge of the sith meaning he wouldn't remember anything before that.
Abrams also named the character, saying, "I named him BB-8 because it was almost onomatopoeia. It was sort of how he looked to me, with the 8, obviously, and then the two B's." The name was conceived early on in the film's production and was one of the few to remain unchanged.
Anakin Skywalker, a Tatooine slave boy, was gifted in engineering -- and was strong with the Force. To help his mother, Shmi, he secretly built a droid: C-3PO. In his earliest form, Threepio had no outside covering, and so appeared “naked,” with his internal parts and motors showing.
After C-3PO and R2-D2 landed on Tatooine, Jawas picked up the two droids, fitting them with restraining bolts. The Jawas sold the robots to Owen and Beru Lars and their nephew Luke Skywalker, a seemingly minor event that would change the fate of trillions in the galaxy.
Vader mocked Luke for his lack of training in lightsaber combat, and he easily pulled the lightsaber out of Luke's grasp through the Force. However, before Vader could strike the unarmed Luke down, he suddenly recognized Luke's lightsaber as his own former weapon.
Every time she speaks, he remembers Padmé. Fighting alongside Sabé reminds him of fighting alongside his wife. While that is certainly painful enough, it's also reminds Vader of the man he used to be, a past he had long ago attempted to kill and bury. However, the memory of Padmé via Sabé won't let his past stay there.
Do R2D2 and C3PO know that Darth Vader is Anakin? Threepio had his memory wiped at the end of Revenge of the Sith. He doesn't even know Anakin was Anakin.
Darth Vader can not use force lighting, because of his severed arms. Robotic hands can't summon the force lighting. However Darth Vader can still use other forms of the force, such as force choke.
The bond between The Chosen One and R2-D2 goes back to as far as the beginning of the prequel trilogy. They first met aboard Queen Amidala's starfighter during Star Wars: Episode I - The Phantom Menace. Anakin was still very young, so he grew up and became a Jedi with R2 at his side.
Although Sidious and Vader were “sensitive” to the Force, Dagobah had a cave so full of the Force that it hid Yoda's presence from the awareness of both the Emperor and his apprentice. Yoda chose to live in close proximity to this cave as it made him completely undetectable.
