The things that we call accents are just collections and patterns of speech variation, usually regional or class-based. Each individual has their own minor variations, depending on their speech communities and life experience. So, you're kinda right to hear them as a bunch of individual voices.
But if you're interested in tuning back into accents, you can start learning / spotting the features that mark the difference. Do they pronounce an 'R' at the end of a word? Or just use a long vowel? Would they pronounce cot and caught the same?
Once you start noticing, its less about matching an accent to a stereotype, and more about understanding all the interesting ways that speech variation occurs.
For a while, it was weirdly "Long Kiss Goodnight". It was getting heavy rotation on TV during my high-school exams, and improbaly watched it 15 times over the few weeks I was meant to be studying.
But now, probably LOTR extended edition, which I've seen every year since it came out, at my friend's annual birthday celebrations.