I patterned the accent after this guy I was in a play with, but that was three years ago. Now I'm listening to Tony Head (Giles in Buffy), who sounds kind of like Spike in real life. It's much more tough-guy talk in real life. His accent (as Giles) is just as fake as mine. His is nice and gritty, but it's not North London. I'm always afraid that I'm morphing over into Tony Head, wherever he's from.
James Marsters