While he had a secret apprentice in Legends, there's actually a good reason why Darth Vader canonically didn't train an apprentice before Luke.

What would Star Wars be without Darth Vader? And what would Darth Vader be without the multiple performers who brought him to life?

Indiana hides a treasure trove so vast and value-packed that first-time visitors often stand in the doorway, mouths agape, wondering if they’ve stumbled into some kind of collector’s fever dream – ...