Justin Roiland is an American voice actor, animator, and writer. He is best known as the co-creator of Adult Swim's Rick and Morty, on which he voices the show's title characters. He is also the creator of Hulu's Solar Opposites, in which he voices the main character, Korvo, and is also known as the voice of the Earl of Lemongrab on Adventure Time and Blendin Blandin on Gravity Falls. He is the founder of the animation studio Justin Roiland's Solo Vanity Card Productions! and the video game studio Squanch Games.