I'd say in terms of the TV adaptation, Drummer comes in at a solid number 2 for me. It's hard to predict exactly where her arc is going, as she's kind of a blend of (book) Drummer, Michio Pa, and a dash of Bull de Baca, and at least two of those people go in fairly different directions in the books. Regardless, I think she's a joy to watch and Cara Gee does a great job with the role.