ThunderCats Roar is an American animated television series developed by Victor Courtright and Marly Halpern-Graser for Cartoon Network. Produced by Warner Bros. Animation, it premiered on February 22, 2020. It is the third television series in the ThunderCats franchise after the original series and the 2011 television series. It is Jules Bass's only solo work without his partner Arthur Rankin Jr., who died in January 2014, and Bass's last television production before his death in October 2022. The show's premise is similar to the original series; in which the ThunderCats escape their dying homeworld Thundera, crash-land on Third Earth, and face off against various villains led by the evil overlord Mumm-Ra. Like Teen Titans Go!, ThunderCats Roar sports a more light-hearted, comedic tone than previous incarnations. The series received a mixed reception from critics, while being panned by fans of the original show for its character designs, humor and characterizations, and it ended on December 5, 2020, being cancelled after just one season.