Link to interview with Lance Reddick (Fringe, Matthew Abbadon
The interesting part:
Q: How was your character on Lost, Matthew Abbadon, explained to you?
A: I was told he was kind of like Darth Vader. That was about as much as I was told. And that really told me more about where he sits in the power structure of this other organization. I've done three episodes of Lost, and in each, I'm in a different time, and my character is different. The truth is with Matthew Abbadon and that whole organization that I'm a part of, I'm not even willing to place bets on whether I'm good or bad. Here's what I'm clear on: I believe in what I'm doing, I'm a master of surreptition, and when it comes to getting things done, I can be calculatingly ruthless.