Tim Kang Interview with collider.com - 2nd January 2011:
Excerpt:

Part of the success of the show was that we just clicked, from the beginning, in the pilot episode. We are close enough, in our values and our personalities as individuals, that when we came together in the pilot, it just clicked. I immediately liked hanging out with Simon [Baker], Robin [Tunney], Owain [Yeoman] and Amanda [Righetti], and that’s still true today. When you walk into a room, you know whether you like a person or not. It was one of those things. The five of us walked into the room together and we just liked each other, and I think that translates. I think that’s a bigger part of why we are where we are. That’s that chemistry and that gelling that happened between the cast members, from day one. You can tell when the cast is having fun together and having a good time doing what they’re doing, and I think that comes out when we work together.