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Podcast EP76: ‘12 Oz. Mouse’s Matt Maiellaro & Mary Spender Go Behind-The-Scenes

The creator, and voice actor, from the Adult Swim animated series discuss their Season 3 renewal and 14-year hiatus.

Take a moment to head over to Terry Ibele’s Animation Industry Podcast, home now to 76 in-depth interviews he’s done with a very cool selection of artists from animation and related industries. With a new podcast every week, Ibele is dedicated to sharing the stories of today’s animation professionals - how they got to where they are, and what they learned along the way.  Episodes cover all areas of the industry, including storyboarding, writing, animating, directing, visual development, game design, and more. Guests have included the notorious JJ Villard, Spike & Mike’s Spike Decker, Disney Director John Musker, Sony Lead Animator Humberto Rosa, Cuphead’s Tina Nowracki, Frederator’s Fred Seibert, Tumble Leaf’s Scarlet Nelson, and many others from major animation studios all over the world.

His most recent interview is Episode 76: Adult Swim's Matt Maiellaro & Mary Spender Share Behind-The-Scenes Of 12 Oz. Mouse

This episode features Adult Swim’s Matt Maiellaro, creator of 12 Oz. Mouse, and Mary Spender, voice actor of Aria from 12 Oz. Mouse. They share what it took to get the series renewed for a third season, plus their journeys into the world of animation.

Check out Ibele, Maiellaro, and Spender to learn:

  • Why Adult Swim brought back 12 Oz. Mouse after a 14-year hiatus
  • How Matt responds to criticism for following unconventional animation and storytelling techniques
  • What Mary did to get “discovered” off YouTube

Check out 12 Oz. Mouse on Adult Swim.

Follow Mary Spender’s music career on YouTube.

Ibele, himself a stop-motion animator (see AWN’s Fresh Takes piece on his whimsical short, The Silly Duck Wizard), deftly digs into all manner of topics, encouraging interviewees to share insights and opinions on a wide range of topics like pitching shows, marketing your work online, key skills studios look for when they bring on talent in storyboarding, vizdev, character design and animation.

In 2018, Ibele, who lives in Toronto, decided to quit his career as a Marketer and pursue his love for animation. Since then, he’s become well known for his viral animation productions, which include the previously mentioned Silly Duck Wizard, which is how AWN first came to know him and his work.

Learn more about Ibele’s work and podcast by visiting You can find all The Animation Podcast episodes on his Soundcloud site:

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Dan Sarto is Publisher and Editor-in-Chief of Animation World Network.