The UCLA Asia Institute has an interview with Ken Leung, aka the ever "sardonic" Miles from LOST.
APA: Based on what I've read and heard about the acting experience on a show like Lost, where because everything is kept so under wraps, you often don't have a sense of where the character is going beyond the episode you're filming, I'm wondering what kind of challenges that brings in terms of preparing for the role.
KL: It's really hard, because you're kind of preparing in a bubble, and you're not sure if you're in a vacuum. You prepare the scenes that you're doing so they make sense to you, and you're coming from some perspective, and it's really up to you to make decisions on why you do things or what you're after. Meanwhile, you know that it's your own concoction, and you really don't know how it ultimately fits into the grand scheme of the story. So it leaves you feeling a little isolated in that sense. So it's really hard. I'm finding it really hard.
No earth-shattering kabooms to be found, but a little interesting.
Link:
Asia Pacific Arts: The Scene Stealer: An Interview with Ken Leung