Pen asked my dad, “Hey, Martin, you work for Phineas & Ferb. They were drinking buddies, and knew a lot of the same people. O: Yeah, it’s funny because my dad was working on Phineas & Ferb as well, and he had been sort of a friend in passing with Pen Ward, who started Adventure Time. Z: And from there you ended up doing other shows, obviously! So I had known them since I was a little girl, and they just gave me an opportunity to audition for it. They were the three head writers of that show, and then Dan and Swampy turned around and did their cartoon, Phineas & Ferb.

So, my Dad, he worked on Rocko’s Modern Life with Dan Povenmire and Jeff “Swampy” Marsh. I was doing a lot of acting as a child, and I pulled back from it a little bit, because I wanted to have a kind of normal teenage upbringing.

Olivia Olson: I pretty much got really lucky, with people that I knew. In honor of the book’s release, I had a chat with voice actress (and real-life as well as in-show daughter to Martin Olson) Olivia Olson, who plays Marceline, to talk about bringing life to the undead Vampire Queen, meeting her gender-swapped counterpart, and what it’s like to work with her father. With extensive character notes, commentary from series characters Finn, Jake, and Hunson’s daughter, Marceline, and a wealth of information about the mysterious, post-apocalyptic world, the Encyclopaedia is a tempting treat for fans of the cartoon. Written in character by Martin Olson, who voices His Lowness Hunson Abadeer, Lord of the Nightosphere, on the show, the book is a lavishly illustrated guide to the Land of Ooo, featuring work by cartoonists Renee French, Tony Millionaire, Celeste Moreno, Aisleen Romano, and Mahendra Singh, and designed by Sean Tejaratchi. What time is it? Interview Time! Abrams Books, in partnership with Cartoon Network, has put out The Adventure Time Encyclopaedia, a definitive companion to the ever-popular television series, and it is worth a look.

Ice queen adventure time voice actor