Playing a TV character for seven years is almost like when you do a play. You live, breathe, and everything else with that character 24-7 for six months or four months or whatever, and that gets very deep in your blood. When you do a TV character for seven years, that's a long time. It becomes a seminal era in your life.

I go in to Warner Brothers to test and in the waiting area I saw Allison Janney sitting there, who I did not know but I was a big fan of. I said to myself, "Wait a second. These guys might know what they're doing if they're hiring her."

I would love to be in the position where the role is challenging enough that I need three months to prepare for it and then six months to live the life of character.

I've been very lucky not to have turned down too many roles that I've later regretted.

Most actors, unless they're big movie stars and can carve out huge chunks of time to focus on one movie that takes six months - the rest of us have to jump around to make ends meet.

I was happy to spend time with my family, get to know my daughter, who was born during The West Wing. I missed her first words. I missed her first steps. I'd leave work before she woke up and got home after she was asleep and didn't really know her. So it was important for that reason to reintroduce myself to the family after all of that hard work.

The political nonsense of network television and the culture of a set and all the problems that that can create, I can take. I can't take betraying the truth of what I'm doing. It cuts to the absolute core of everything that I do in the craft, in this world that I live in.