The show is pretty dodgey, and to be honest, before I saw the preview for the 2010 episodes, I was ready to give up on the show. The problem is the characters and the acting. The main character is atrocious, and he isn't helped at all by the piss poor dialog. And then comes the actually writers. They are terrible writers with great ideas. You can tell they have some good ideas of where to take the story, but they are unable to show them to us in a compelling manner. I think they should hire new writers and keep the current ones as creative directors or something.
The only characters I actually like are Bryce and Nichole and Janis. I like Bryce because the actor is great, and he brings some believability to his character. I like Nichole because she is Cute, and generally I nice person. I like Janis because....I dunno why, I just do
Charlie (from LOST) annoyed me in Lost and he annoys me in this show. Penelope (from LOST) I loved her in LOST but in this show she is sort of annoying...As I mentioned, the main character can't act worth crap, and his lines are "Chloe Sullivan" levels of cringe worthy. Did I mention he can't act? As for Dimitri his acting isn't great or terrible, he just is.
I guess that technically Mark is the main character - but I pretty much look at this as an ensemble show. I agree that Mark's character isn't strong so for me I'm more interested in Weddick, Demetri, Zoe, Janice, Olivia (when she isn't whining), Aaron (when he isn't whining), the young doctor at the hospital, and the Mysterious Persian woman (Nahda, I think).