Tadahito "Tad" Mochinaga was a pioneer Japanese stop-motion animator. Having done many stop motion films/shorts in Japan, he is best known as the animator for Rankin/Bass' "Animagic" productions at his MOM Studio in Tokyo throughout the 1960s. He did this work in association with American director Arthur Rankin, Jr. who wrote and designed the productions before sending them to Japan for animation.

In 1945, Mochinaga traveled to Xinjing in the Japanese puppet state of Manchukuo set up in occupied China, to work at the Manchukuo Film Association. He stayed in China after the war and from 1950, he spent three years in Shanghai working on such films as Thank You, Kitty. He is perhaps the only major artist of the era to have worked in both Chinese and Japanese animation industries.