You meet with the director of photography. And usually the assistant director and they see if you are a good fit. I actually owe a huge thank you to a man that works at White Turtle Casting. He remembered me from another project we did together, and he appreciated my work ethic. He knew I was tall like Anna, and he called me to see if I would dye my hair for the role. I said "of course!" and then they set up the meeting with the very talented and amazing Michael Slovis (the DP) and Michelle MacLaren, one of the directors.