Jessica Biel is a really interesting case. She actually called us after the table read and said, "You guys should go meaner." She pitched us, and said, "Look, I know there are a lot of things to make fun of me about. I don't want people to think you're pulling punches. Please, dive in." We asked, "Could we tell a joke about your friend and mentor Stephen Collins?" And she said, "Well maybe not so much in that area. As long as the jokes were about me, I'm game for everything."

I think it's good to leave people with the memory of that being a great character. And if we have a reason to bring him back, we'll bring him back.

BoJack especially is a very dialogue based show. A lot of the comedy comes from conversations, and a lot of story comes from misunderstandings and people trying to connect with each other, and there was a really interesting challenge trying to write a script with no dialogue.

I want each season to feel new and special. I don't want it to feel, "Oh, more of this." That's something that's easy to do in the first three seasons, and harder to do as you go. I'd rather err on the side of blowing up everything and being like, "Why did you do that? There was more story to tell there," and moving the family to Mexico like on Weeds, instead of people going, "Oh, we've seen this already. We're tired of this."

Daniel Radcliffe was actually a fan of the show and excited to be on it. Some of it is we've gone long enough that we're legitimate. Even if they don't know the show, they know we are a show and not some weird thing that's going to go away. Also, the more celebrities we get on BoJack show, the more it feels like a club to be in: "If Naomi Watts will make a fool of herself, I guess I can make a fool of myself, too."

This is why Jessica Biel is a successful actress: because, despite the punchlines, you know how to tell a joke.

I don't know if that's the best story for BoJack, long-term. I do love the world, and I love playing around in it and it feels like an elastic enough world that, any story I want to tell, I can tell about these characters in this world. I can talk about parents and children, husbands and wives, the troops, or Hollywood. It does feel like an endless playground at this point, it would be a shame if we cut it off early for fear of repeating the same things over and over again. But I am looking to move the story and character somewhat.