Mark Justin Roiland (born February 21, 1980) is an
American actor, voice actor, animator, writer, producer, director and comedian. He is best known as the co-creator and executive producer of the
Adult Swim animated series
Rick and Morty, in which he voices both of the show's eponymous characters, the voice of Oscar on the
Disney Channel's animated television show
Fish Hooks, as well as the Earl of Lemongrab on
Adventure Time and Blendin Blandin on
Gravity Falls.