In a roundtable with press at Comic-Con, voice actors Jeremy Shada (Finn), John DiMaggio (Jake), Olivia Olson (Marceline) and executive producer Adam Muto talked about the show's finale and how the series got to where it is today.Īdventure Time's growth is clearly seen in Shada, who actually matured during the show. And regardless of how you feel about the emergence of the ' CalArts style,' it has swept across a resurgent wave of shows both adults and kids can enjoy. The then-unfamiliar mix of sustained plot lines, too-serious-for-its-art-style world-building, catchy original music and mature humor was a breath of fresh air at the time.