Alexis Bledel, who plays Beth Dawes on AMC's Mad Men, speaks with AMCtv.com about her character's sex scene with Pete Campbell and what excited her about this role.

Q: Who was your favorite character before joining the cast?

A: They're all written so well... Peggy is an incredible character, and I remember thinking that when I first watched the show. She's a great and rare television character. It's been fun watching her go from Don's secretary to coming into her own in that time period.

Q: What drew you to the part of Beth?

A: I instantly wanted to know more about her because she's quite mysterious and she's conflicted... I felt for her right away. She is stuck in a bad marriage that is really taking a toll on her psyche I think, so I just wanted to explore what that meant for her.

Q: This character is a bit darker than we're used to seeing from you. Was it fun to play someone so different?