This has always been something which bugged me from an IU perspective. Even though the OOU reason iis obvious, I wonder how to reconcile this IU.
iIn Obi Wan Kenobi, we head unmasked Vader’s unmodulated voice and it’s the same as Hayden’s Canadian accent:
Yet in ROTJ, unmasked Vader has the English accent of Sebastian Shaw. Now one could argue that he doesn’t really sound distinctively English, but IMO he clearly doesn’t sound Canadian or American at all. Shaw has a very esteemed gravitas to his voice and sounds English IMO:
What is your head canon for the IU reason as to why his accent would change?