Matthew Fox was good in the lead role, but I think he would look better (and I can't believe I'm saying this) with a little stubble. The ex-wife is nice to look at, but her character could use some development. Likewise the cop. The coroner was a fun character; I hope to see more of him in future episodes.
The only problem I foresee with Haunted is finding time to watch the damn thing. I'm already pretty heavily committed on Tuesdays.