I'll miss Lafayette too. He had style! I wondered if the bratty new vampire got him. But it looked like someone did it who doesn't like Detective Bellefleur, what with leaving the body in his car.
I will miss Amy as well. She had an unlikeable character, but the scenes where she and Jason were high on V. were so groovy and beautiful. I would have watched this show just for the sake of those scenes, and now she is gone

Loved Steven Root's portrayal of Eddie, too; sorry to see him go as well.
Jason does not look as hot when he is all churched up. I think I saw that actor as the brother in a movie called Flicka. Love him!
As for Bill, his character was sort of boring, so I am glad they gave him Jessica to shake things up. Hope it stays funny and doesn't cross over into annoying. They were using some tired jokes for her character. I like the sheriff vampire Erik and his lieutenant (can't remember her name, but she has almost as much style as Lafayette did! Liked the knit blue outfit she had on when they were dropping off the troubled teen vamp at Bill's.)
As for Maryann, I think that actress was the wife in
In Treatment, the HBO series with Gabriel Byrne. I wonder if that is coming back. At first I thought her character was recruiting for a brothel or something, but now it looks to be another supernatural storyline.