David Bowie

Questioning my spiritual life has always been germane to what I was writing. Always. It's because I'm not quite an atheist and it worries me. There's that little bit that holds on: 'Well, I'm almost an atheist. Give me a couple of months.'

The importance of heart health became very real for me when my father died of heart disease seven years ago. Having experienced the loss first hand, I am inspired to do everything I can to break the cycle and prevent families from losing loved ones to this preventable disease.

Frankly, as much as I love to improvise, it hasn't been difficult to stick to the script on 'Mad Men.' The writing is so precise, and the story so carefully crafted, that I don't think there's room - or need - for ad libbing. I could never come up with dialogue as lovely as these writers do, anyway.