Voiced by Kappei Yamaguchi . Known for iconic roles like Usopp in One Piece and L in Death Note , Yamaguchi gives Mater a frantic, high-pitched energy that leans heavily into the character's "lovable fool" archetype.

Other key cast members include:

The Japanese dub of Cars 2 serves as a testament to the enduring popularity of the Cars franchise in Japan. The film's success paved the way for future Pixar movies to be dubbed into Japanese, further solidifying the studio's presence in the Japanese market. As a result, Japanese fans can continue to enjoy Pixar's films with the same level of quality and care that they have come to expect from the studio.