Justin Roiland, born Mark Justin Roiland on February 21, 1980, is an American voice actor, animator, writer, and producer who rose to prominence as the co-creator of the Adult Swim animated sitcom Rick and Morty. He provided the voices for the show’s two central characters, the brilliant but nihilistic scientist Rick Sanchez and his anxious grandson Morty Smith, from its debut in 2013 until his departure in 2022. Roiland’s distinctive vocal style and improvisational approach helped define the series’ surreal humor and existential themes, earning him a devoted fanbase and critical acclaim.

Roiland’s career began in the early 2000s when he moved to Los Angeles and worked on various animated projects, including creating short films for the online platform Channel 101. There, he met Dan Harmon, and the two developed the concept that would become Rick and Morty, which premiered on Adult Swim in 2013. The show quickly became a cultural phenomenon, winning multiple Emmy Awards for Outstanding Animated Program. Roiland also voiced characters in other popular animated series, including the Earl of Lemongrab in Adventure Time, Blendin Blandin in Gravity Falls, and Oscar in Fish Hooks, showcasing his versatility as a voice actor.

In 2020, Roiland expanded his television work with the Hulu series Solar Opposites, which he co-created and voiced the main character Korvo. The show, about a family of aliens stranded on Earth, was well-received and further cemented his reputation in adult animation. He also founded the animation studio Justin Roiland's Solo Vanity Card Productions! and the video game studio Squanch Games, where he worked on titles like Accounting+ and Trover Saves the Universe.

However, Roiland’s career took a dramatic turn in early 2023 when he was dismissed from Rick and Morty, Solar Opposites, and Squanch Games following accusations of domestic violence and abuse. The charges were later dismissed due to insufficient evidence, but in September 2023, new allegations of sexual assault were reported against him. These controversies led to a significant fallout, with both Adult Swim and Hulu severing ties, and Roiland’s public presence diminishing. While his contributions to animation remain influential, his legacy is now complicated by the legal and ethical questions surrounding his personal conduct.