Parker Simmons is an animator, voice actor, writer, and producer. He is the creator of the Cartoon Network and Titmouse animated series Mao Mao: Heroes of Pure Heart (2014), as well as being the voice of Mao Mao and various characters. He is also known for his work on OK K.O.! Let's Be Heroes (2017) as a writer, storyboard artist, and voice actor. He is also known for his work at Titmouse as an animator on Metalocalypse (2006), Superjail! (2007), The Venture Bros. (2003), Black Dynamite (2011), Motorcity (2012), Turbo FAST (2013), and Nerdland (2016). He was also the voice of Pankraz in the English dub of Dragon Quest: Your Story (2019).