Behind the scenes

What was it like seeing the show blow up the way it did? Grace: “I used to go on Tumblr and read all the posts, all the reactions people had, but after Jail Break… couldn’t do that anymore.” Zach: “I poke my head into a reddit every once in a while.”

What’s it like in the booth with the rest of the cast? Grace: “Deedee and Michaela always get to do the funniest things.”

Discussion of how voice acting lends them a little more anonymity than live-action, and there’s still a spectrum of how recognizable people are.

Grace recounts a story from earlier in the day, possibly on the way to that very panel. “The elevator was pretty crowded and I was able to get on but Zach wasn’t. And as soon as it closed, one of the other people in the elevator was like 'Oh my god, Zach Callison almost got on the elevator with us!’ And I was like 'Oh my god, that would’ve been so cool!’”

Both Zach and Grace recounted times when they’ve greeted stranger wearing SU apparel and gotten blank stares in response, like, “Uh, yeah, what’s your point?”

Zach: “As of Sunday, I’m leaving the country to be a hobo for a bit.” He’s flying to Siberia, then taking a 62-hour train ride to get on a boat to Korea, where he plans to visit the Korean animation studio where SU is drawn (as seen in “Steven’s Dream”), something almost no actors do (apparently Michaela was more or less the first to do so, for any show at all).

Sometimes Grace will have a lot of “catching up” to do with the plot. “One time Rebecca was like 'oh by the way Lars is pink now.” Zach jokes, “Lars is pink, Ronaldo and Pearl are married, oh and Steven is dead.”

Have you ever cried in the recording booth? Zach: “Over a dozen times.” Grace says she has, sometimes in group records.

More joking around: “Yes, I’m Zach Callison, the voice of Onion. I’ll be in my booth.” “You should have a print that’s just Onion.” “With the flames behind him.”

What were your auditions like? Grace: “I was reading the sides from 'Bubble Buddies’, and Connie is worried she’s gonna die with no friends and I was like 'This is a kids show? This is a show for children and I’m supposed to say these words?!’” She saw Rebecca Sugar’s name attached to the show, which she recognized as a fan of Adventure Time, particularly Marceline “I’m edgy like her!”