Ice Age Japanese Dub -

(山寺 宏一) – Known for his versatile voice acting, Yamadera has voiced Manny in all Japanese versions of the film. Hikari Ōta

The Title and Branding

The first major change occurred with the title itself. In Japan, the franchise is known as "Ice Age" (アイス・エイジ). However, the marketing leaned heavily into the wordless, physical comedy that transcends language barriers. The character of Scrat (known in Japan simply as Scrat or スクラット), the saber-toothed squirrel obsessed with his acorn, became the face of the franchise in Japanese commercials. His pantomime comedy required little translation, making him instantly popular with Japanese children and adults alike.

The Japanese version features high-profile voice actors (seiyū) and celebrities known for their comedic and dramatic versatility: : Voiced by Koichi Yamadera , a legendary seiyū famous for his range. : Voiced by Hikari Ota

Diego the Saber (ディエゴ): Voiced by Hochu Otsuka, a deep-voiced actor known for stern, authoritative roles (Jiraiya in Naruto, Yami Sukehiro in Black Clover). Otsuka gives Diego a gravelly, intense seriousness that contrasts with Denis Leary’s sarcastic, cynical edge. This makes Diego’s betrayal and redemption arc feel more dramatic and less flippant—fitting for a culture that often values sincere redemption narratives.