S1 Finale. Errol Childress - 3 different accents in consecutive scenes

That's not a mistake. That's on purpose. He has all those different accents because they're trying to show that hes super F'ed up and that he is scary as hell

No it's not a mistake. It shows that he is suffering from multiple personality disorder. Which is common in victims of ritual abuse and mind control.

It wasn't a British film, it was a classic Cary Grant movie, and CG had a distinctive way of speaking. Childress was immitating CG lines from the film, because I heard them overlap. It seemed to me like he was doing it to make his "wife"/sister laugh; they'd probably watched that film dozens of times. I found the juxtaposition of that horrific house of decay and damaged children in adult bodies creepy and tragic, considering they were acting almost like a normal couple in a morning routine. As normal as they could be given their lives and squalor.

Since the killer and his half-sister had been ritually abused, and it's doubtful they were educated at home or in a public setting, along with the impression I got that they had not been cared for as children, but raised themselves together when they weren't adult playthings, that they probably had an odd, unwderdeveloped vocabulary. Especially the woman since she didnt interact with people like Childress did when he was only doing his jobs. No antlers, branch craft, and spirals included.

What she said was it had been almost three weeks since he had "made flowers on her", and given how the scene quickly *gag* became sexual that phrase was possibly one she was taught as a little girl during her grooming. (Ann Dowd is an amazing actress, I wish she'd have gotten more screen time.) It isn't ideal grammar, but I have heard people tack "is all" onto the end of a sentence, and they aren't Irish.

I agree with the above poster, neither of them had an identity. Both might have felt like they were only bred to give sexually. And with enough violence and terror attached, a broken mind and soul will continue the evil done to them.

I noticed the vocal changes also.Without decent upbringing mimicry would probably be the result.