User blog comment:Mmpratt99 deviantart/A Question About Accents--Is It Better For Characters Not To Have An Accent?/@comment-26054278-20150706215626

I personally find written accents kind of annoying to read, and I honestly don't think it adds much to the story to type like how the characters would actually say it and have the readers have to read it more than once to even comprehend what the character said.

I guess you can say they have an accent and just do research on what sorts of words they would say as opposed to how they actually say them (ex. "blankets" = "nappies" in Britain), but it's your pick on that regard.