I find Butcher's accent sooo funny lol, especially because they cast Simon Pegg to play Hughie's dad (in the comics, which are tit, the artist used Simon Pegg as the base design for Hughie [without permission], hoping SP might play him in a live adaptation - but he got too old for the role). It's not like they couldn't get any British people
I find it especially funny because they get all his family to do the exact same crappy accent. In the comics (again, not worth reading IMO, pretty vile in a lot of ways), the guy writes the accents into the dialogue and they read terribly. I appreciate them sticking to their guns on it and will cut it some slack because it's quite clever in a lot of other ways. I thought early S3 was a bit too much though, like too much grossness just for the sake of it