I kinda cringe when people type the accents in fanfiction. Like there are actual works that do that, but they are usually harder to read because of it. POINTS AT THE RED BADGE OF COURAGE. I got so many headaches from the accents it was terrible . :"")
It's perfect for roleplaying, if you want, but if you do it for your fanfiction, it does nothing but give your readers big headaches. Trust me, downing a 90,000 word fanfic without the accents are a blessing, but I can't even do a 5,000 word fanfic with them. I just can't.
ALSO PLEASE FOR THE LOVE OF GOD DON'T DO SWEDEN'S ACCENT OH MY GOD NO. THE PROBLEM IS, I DON'T JUST GET A HEADACHE, ' C'N'T F'CK'N 'ND'RST'ND Y'' PL''S' N'. N' 'N' C'N R''D TH'S.
Tiny modifications like, "Where's m' hat 'n jacket?" is fine, you can tell he has a bit of an accent, but, "Wh'r''s m' h't 'nd j'ck't?" is unnecessary.