One of my favorite moments from The Dark Knight trilogy is Ra's al Ghul's monologue before he burns down Wayne Manor.
However, something about this confuses me. Before the monologue, there is an exchange where Ducard reveals himself as the "real" Ra's al Ghul, to show how theatricality and deception can lead to "immortality".
My question is, who was the impostor at the start (the one played by Ken Watanabe)? Was he just a man pretending to be Ra's, while Ducard was Ra's the whole time? Or was Ra's al Ghul just a title passed down to make it seem like he was immortal (whoever the first one was)?
Bruce Wayne seemed genuinely surprised by this, so I'm guessing Ra's al Ghul was Ducard's real name the whole time. But still, I'm not sure.