[Quiet Man Cometh]

I don't think "spoilers" are objectively defined. If it's something that someone who hasn't seen the movie/read the book might not want to hear, then it can be a spoiler whether or not it was made available prior to release. People intentionally search out info out of excitement and such, so I figure it's a personal judgement thing, not a "it was already there" thing.

On Kylo Ren: (This would be a spoiler to me because I was curious as to what he would sound like and wanted it to be in the moment rather than before hand. I didn't look up any character info, and didn't even know what anyone (besides Rey, Finn, and Chewie) were going to look like.)

I'm pretty sure the voice is Alan Rickman, but can't say since it's not on IMDB or elsewhere that I can find.