I can impoisonate a Nu Yoiker fairly well but it starts to trail off if I keep it up for too long, I can do this bitchin' Californian surfer dude voice that annoys the hell out of everybody except when I use it at the right time and then it's hilarious, and I can really ramp up me nat'ral Bri'ish northern-ness to t' point that I mek south'ners cringe. The Brummie accent (and black country in general) is a work in progress? (Note the questioning inflection. Brummies use it, those from the "black country" do not. They get very offended if you mistake them for Brummies.)
My natural accent was described by my friends as "the American stereotype of a British person" but then they were all northern too, and when I went to uni everyone just thought I sounded as common as the rest of my fellow northerners. Regardless I DID get cast to play the devil in a student's radio play because my voice sounded sinister/cynical enough :3
Also with certain fictional characters I will be able to quote lines of theirs with pretty much the exact right vowel sounds and inflection, but ask me to say anything that character never said and it falls apart entirely.
When I get angry or surprised I go fully Liverpool. Oddly enough I am completely incapable of imitating the accent deliberately despite being originally from there.
The Sewth Efrican, Landan and Austrylian accents turn into a horrible mish-mash of each other if I attempt any of them, and are pretty much on my forbidden list, because as much as I love the Sewth Efrican accent, the other two are a serious threat to my tolerance.
