Well, in such a fanfiction, R2D2 could use his beeps and whistles to communicate something unexpected to Darth Vader. It could be some long - forgotten information about Anakin Skywalker that makes Vader question his path. And Vader might find himself hesitating to harm the little droid because of this new - found knowledge.
A 'Darth Vader meets R2D2' fanfiction could have a very interesting scenario. R2D2 might manage to escape from Vader several times, leading to a sort of cat - and - mouse chase. Along the way, Vader could start to have some internal conflict. On one hand, he is a Sith Lord following the Emperor's orders, but on the other hand, his connection to his past through R2D2 might start to break down his dark side facade.
In a 'Ahsoka meets Darth Vader' fanfiction, there could be an intense battle. Ahsoka, with her Jedi skills, would be a formidable opponent to Vader. Maybe she tries to redeem him, recalling the Anakin she once knew. Or perhaps Vader sees her as a threat to the Empire and attempts to eliminate her quickly.
Well, in fanfiction, when Darth Vader meets Yoda, it could lead to a battle of ideologies. Vader, having turned to the dark side, represents power and control through the Sith ways. Yoda stands for the Jedi's connection with the Force in a more harmonious and selfless way. They could engage in a Force - powered duel where Vader tries to overpower Yoda with his dark side strength, but Yoda uses his wisdom and experience to counter.
In such a fanfiction, one possibility is that Anakin Skywalker might initially be in shock upon seeing Darth Vader. He could struggle to come to terms with what he has become. Maybe there would be a battle of wills as Anakin tries to fight against the dark side within Vader.
In fanfiction, when Darth Vader meets his grandchildren, there could be a moment of shock and confusion. His dark past might contrast sharply with the innocence of his grandchildren. Maybe he would initially be feared by them, but as time passes, he could show a side of him that was long buried under the Vader persona, a side that is capable of love and protection.
Darth Vader would probably have a complex reaction. He might feel a sense of familiarity that he tries to suppress. His first instinct could be to destroy R2D2 as it represents a part of his old self that he has tried to forget. But at the same time, he might be intrigued by what the droid could tell him about his past or the Rebellion.
Well, perhaps Darth Vader would recognize R2 from his past with Anakin. He might initially be hostile but then start to have memories resurface. This could lead to an internal conflict within Vader as he battles between his current Sith self and the remnants of his former self that had a connection to R2.
He might try to change his own fate. For example, he could prevent himself from turning to the dark side in the first place. Maybe he would warn his younger self about Palpatine's true intentions.
Well, one possibility is that Ahsoka tries to redeem Vader. She might see a glimmer of Anakin still in him and strive to bring him back to the light side. It would be a very emotional encounter, full of memories of their past as master and apprentice.
Well, it could be a really wild story. Harry's magic might interact in strange ways with Darth Vader's Force powers. Maybe Harry would try to use his spells to resist Vader's dark side influence.
He might be interrogated by the captors. They could try to extract information about the Sith, the Empire's secrets, or his own powers. Maybe they would attempt to turn him against the Emperor, using various means like appealing to his remaining humanity or threatening him with things he values.