IESB has an interview with Matt Davis.
Check it all out here.
Here is an excerpt:
IESB: Alaric Saltzman is such a dark, mysterious character. How much were you told about him when you were cast, and how much have you learned as you’ve gone along?
Matt: I accepted the offer blind. I had no idea what the character was. I didn’t know if I was going to be a vampire, or what. The material I auditioned with wasn’t Alaric. It was scenes from the previous history teacher, before he was killed. I really had no idea what I was getting myself into, but it seemed like an exciting opportunity. The nature of the business, the way it is, I wanted to work, so I said yes. I only knew, when I landed and got a script, and they took me to the set to meet everybody and I started asking questions.