Anime

    Millennium Family Casts Mutsumi Tamura as Arthur Benfield

    Millennium Family introduces Arthur Benfield, voiced by Mutsumi Tamura. Watch the character short for the family's youngest son.

    Nov 10, 2026
    2 min read
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    Millennium Family Casts Mutsumi Tamura as Arthur Benfield

    Millennium Family has introduced Arthur Benfield, voiced by Mutsumi Tamura. The fifth and youngest son of the Benfield family is highly intelligent and unusually mature for his age.

    Tamura's other roles include Kobayashi in Miss Kobayashi's Dragon Maid and Lutz in Ascendance of a Bookworm. Arthur's new character art accompanies an introductory short.

    Arthur Benfield Character Short


    Sho Kasugai's original manga has run in Shonen Gahosha's Young King OURs since March 2021. Its ninth collected volume was released in Japan on July 30.

    Masato Jinbo directs the anime and handles series composition at PartsCraft. Hiroshi Yoneda serves as character designer and chief animation director.

    Orange Inc. publishes the manga in English through its emaqi service.

    About Millennium Family

    Adapted from emaqi's story description:

    Seven immortal siblings born in England have what countless people dream of: eternal life. That makes them valuable targets for criminals, corrupt medical institutions and military organizations around the world. After spending centuries apart, the siblings come together again, bringing their extraordinary family into a new chapter.

    Source: Millennium Family official anime website

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