Sam Register is an American film and television producer who served as president of Warner Bros. Animation, Cartoon Network Studios, and Hanna-Barbera Studios Europe from 2020 to 2026.
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Career
Register began his career directing toy commercials. In 1998, Register lead the launch of CartoonNetwork.com and Cartoon Orbit in 2000, serving as the latter's creative director between 2000 and 2001.
He was the creator of Hi Hi Puffy AmiYumi and was one of the developers of The Looney Tunes Show alongside Warner Bros. Animation veterans Spike Brandt and Tony Cervone, and served as executive producer of Teen Titans and Ben 10. He also served as executive producer for Transformers: Animated, based on the popular Transformers franchise, and Ben 10: Alien Force. He then became the executive producer of Scooby-Doo! Mystery Incorporated, Teen Titans Go!, Mike Tyson Mysteries, and Unikitty!.
The fictional character Dr. Samuel Register (from the Teen Titans comics) was named after Sam Register. On August 28, 2020, Register officially became the president of both Warner Bros. Animation and Cartoon Network Studios. Recently, he has been the executive producer of the HBO Max original series Looney Tunes Cartoons and Jellystone! as well as Adult Swim original series Primal and Unicorn: Warriors Eternal (both created by Genndy Tartakovsky). He also served as an executive producer for films like Teen Titans Go! To the Movies and the 2021 live-action/animated Tom and Jerry hybrid movie.
In August 2026, it was announced that Register would be leaving his position as head for Warner Bros. Animation, Cartoon Network Studios and Hanna-Barbera Studios Europe after Warner Bros. Television Studios and Register decided to not renew the contract.