Laura Fraser(II)

Her accent as Lydia on 'Breaking Bad' was so convincing that many of her co-stars had no idea that she wasn't really American.

[on her role as 'Lydia'] I didn't know how demented she was in the beginning. She seems to vibrate at a very high-pitched frequency - constantly in a fight-or- flight mode, you know? I feel like she's gone from being rather cold to completely glacial. She's almost like a little Nazi in these last episodes.