Sam Register Steps Down as Head of Warner Bros. Animation, Cartoon Network, and Hanna-Barbera Studios
Entertainment

Sam Register Steps Down as Head of Warner Bros. Animation, Cartoon Network, and Hanna-Barbera Studios

authorBy Mindy Kaling
DateAug 25, 2026
Read Time2 min

After an illustrious career spanning over three decades within the Warner Bros. Discovery ecosystem, including 18 years at the helm of Warner Bros. Animation, Sam Register is set to conclude his tenure. The announcement, made by Channing Dungey, Chair of Warner Bros. TV Group, revealed a mutual agreement not to renew Register's contract, signaling a new chapter for both the executive and the esteemed animation studios.

In his statement, Register expressed gratitude for his time and the collaborative efforts with his teams, acknowledging the remarkable achievements made together. His departure initiates a search for a successor who will take charge of Warner Bros. Animation, Cartoon Network Studios, and Hanna-Barbera Studios Europe. During this transitional period, Matt Matzkin will continue to lead business operations, while various creative department heads will manage their respective areas, ensuring continuity and stability for the studios' ongoing projects.

Register's influence on the animation landscape is undeniable, with a career that began at Cartoon Network in 1994, where he played a pivotal role in developing iconic series and launching the network's first website. Under his leadership at Warner Bros. Animation, he oversaw the creation and revival of beloved franchises such as “Looney Tunes Cartoons,” “Animaniacs,” “Harley Quinn,” and numerous other successful animated shows and feature films, including “Teen Titans Go! to the Movies” and the live-action/animated “Tom and Jerry” movie. His extensive legacy is marked by a commitment to innovative storytelling and the cultivation of a vibrant animation slate that has captivated audiences worldwide.

The entertainment industry is dynamic, constantly evolving with changes in leadership and creative vision. Such transitions, while sometimes unexpected, often pave the way for fresh perspectives and new opportunities, fostering continued growth and innovation within established organizations. It is through these evolutions that companies can adapt to changing tastes and technological advancements, ensuring a vibrant future for creative storytelling and artistic expression.

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