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."

We often ask, "Do we have enough humans?" Because it's always fun to come up with an animal in show, but it begins to feel like overkill.

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.

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."

I think you can imagine everyone has ankle weights on, or technology, and there's a reason that people aren't floating around. But I also liked this idea that in this world, people forgot they can swim. The modern world weighs you down, there's always emails to check, you've gotta go to your job and pay your mortgage. You're not really thinking, "Oh, yeah, I can swim around." BoJack discovering it is a big deal, and kind of fun.

I am wary of repeating myself too much. In this age of Netflix, as a Netflix show, if you want to go back and watch a season 1 episode, you can do that easily. I'm not interested in repeating the same story beats over and over and over again. But part of the truth of BoJack story is about how much he repeats himself and these patterns that are difficult to get out of. I'm trying not to be evasive about that. I'm not using that as an excuse. I think that's convenient to fall back on as a TV writer: "Oh, it's a show about stagnation."

'Lost in Translation' movie says something interesting about the alienation of being a stranger in a strange land, but also of being a celebrity. That kind of feeling of not being in the same strata as everyone else.