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."

It's a fun show, BoJack Horseman to do, and that gets around. It's easy, especially for a lot of actors who don't do a lot of voiceover. No makeup, no wardrobe, they really just come in, the lines are right there, we goof around for a half hour, and I think it feels like, "Oh, yeah, this is why I got into this business: to play around and have some fun." There's no paparazzi, most of them don't do any promotion for the show. it's the fun part of acting, without the other stuff.

One of the things I've found really interesting about the show is that a lot of people really relate to our animal characters, more than we thought they would. Part of that is, because they are animals, people project themselves onto them. If BoJack just looks like Will Arnett, people go, "Oh, I know who that guy is. That's a Will Arnett type." But because he's a horse, people can go, "Oh, I'm kind of like him in some ways."

In a certain way, sometimes it does feel like we say goodbye to a character, and we don't want to bring them back unless we have a good reason. We left the door open if we wanted to use him more. I always think it's better to leave the audience wanting more.

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.

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.

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."