Want to make a cool Southern character? Just have them go "Hah, ah'm da kewl suth'rn dood an' ah'm heeyer ta rassle up sum cows".
Want to make a cool Germanic character? Just have them go "Ja, hallo, guten tag, I am ze German Mann, I leik to KHGHun ze gamut of sings".
If you can't tell, I'm being sarcastic.