Boy next door, nerd, southen cowboy, boy scout, outlaw, sexy surfer in English. I can also do Indian, Pakistani, Russian, Spanish, Chinese, Japanese, speaking in English of course.
In Japanese it would be a kamakazee or a samurai. Rough, tough, and ready to rumble.
In Russian I would be more of a bait and switch used car salesman. "Sure Comrad, whatever you need :)"
In Indian or Pakistani I would be the guy at the yard sale, always trying to talk you into a lower price.
The same with the Chinese or Japanese, I would be haggling with you every step of the way until you practically gave it away, just to get rid of me.
When the Cowboy and the Nerd have a conversation, you have a macho, southern redneck, talking to a naive, but super smart geek. Though they both speak English; neither has the foggiest idea what the other is saying.
I'm sure I do other accents, dialects, and characterizations, I can make them up as I need them.