My accent is a combination of Northern and Southern English with a bit of American. Part Northern because my parents are from there. Part southern because I live there. And part American because your accents fill everything I watch and do so I can't help but say things in American every now and again.

I can Fake A full on Northern Britsh accent, and a very English accent.
I can do Aussie, German, Russian, full-on-American, Texan, Canadian, Far Eastern (as in Japan and China) and French.

I can't actually speak any of these languages (I can barely speak English) but for some reason I can do the accents.