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."

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.

The beauty of Netflix is that you can figure out a good part of the season before you get started. You're never in the hole of, "Oh, we've already released the first four episodes, and now we gotta make the finale, and we've already promised this."

Anything is possible in this universe. It could be that you turn the chair around it's just a glove handcuffed to a bomb, like in Inspector Gadget.

That's part of the comedy, too, is we do have jokes throughout of hanging a lantern on the absurdity of the world. Like, when BoJack's flying over the neighborhood, you see some houses have swimming pools in the backyard, and what does that mean? Why would there be a swimming pool underwater? But we thought it was funny.

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