Mark Justin Roiland is an American voice actor, animator, writer, and producer. He co-created the Adult Swim animated sitcom Rick and Morty, for which he voiced the protagonists Rick Sanchez and Morty Smith from 2013 to 2022, as well as Hulu's Solar Opposites, in which he voiced the main character, Korvo, in seasons 1 through 3 from 2020 to 2022, until both networks severed ties with him in 2023.
