The core trio has remained largely consistent throughout the series: Voiced by Kōichi Yamadera

If you’re a fan of voice acting or just want a fresh take on a childhood classic, the Ice Age Japanese dub is surprisingly stacked with legends. Highly recommend.

This Disney+ spin-off film saw the departure of some original English cast members but notably retained Kōichi Yamadera and Hikaru Ōta as Manny and Sid. The new cast additions included Emiri Katō and Yu Hayashi . However, it's worth noting that the film's shift in creative direction led to some fan disappointment, with many noting the absence of beloved characters like Scrat and the change in the voice cast for characters like Diego (voiced in Japanese by Hiroshi Shirokuma ).

Dubbing is far more than literal translation; it is cultural adaptation. The Japanese script for Ice Age meticulously alters word choices to fit the personalities and social hierarchies inherent in the Japanese language. Honorifics and Pronouns (Jidai and Boku)

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アイス・エイジ2 ( Aisu Eiji 2 )

Perhaps the most significant difference from the English version is the casting of Hikari Ōta, one half of the famous Japanese comedy duo Bakushō Mondai, as Sid. Ōta brought a uniquely fast-paced, high-pitched, and slightly frantic comedic delivery to the character, distinct from Leguizamo's lisping take.

Interestingly, one character required absolutely no localization: Scrat, the saber-toothed squirrel. Voiced by director Chris Wedge, Scrat’s frantic squeaks, grunts, and screams remained completely untouched in the Japanese release.

Despite the challenges brought by later films and the change of studios, the dedication of the core voice actors remained unshaken, providing a familiar and comforting presence for long-time fans.

Note: For modern streaming services in Japan (Disney+ / U-NEXT), please check the audio settings. Often, the first film is still listed with subtitles only, or a re-recording may be used depending on the platform.

For the hyperactive, lovable sloth Sid, the Japanese producers made a brilliant choice: Hikaru Ōta, one half of the immensely popular comedy duo Bakushō Mondai. The English version's Sid, voiced by John Leguizamo, has a distinct, grating, yet endearing voice. Ōta managed to perfectly replicate that energy, infusing Sid with a manic, high-pitched, and hilarious tone that fans adore.