Seiji Mizushima: the director who shaped 2000s anime

Published on May 09, 2026 | Translated from Spanish

Seiji Mizushima is one of those names that fans of the 2000s remember well. A key director of the decade, he is known for taking the reins of the first adaptation of Fullmetal Alchemist, a commission from Bones that required him to shape a dense story. His career includes Mobile Suit Gundam 00 and the original Shaman King, demonstrating a range that goes from family drama to space warfare.

Close-up of Seiji Mizushima, with monitors showing Fullmetal Alchemist, Gundam 00, and Shaman King.

The technique behind large-scale drama 🎬

Mizushima is not a visual auteur with a unique signature, but a craftsman who adapts his style to the project. In Fullmetal Alchemist (2003), he opted for a darker palette and close-up shots to heighten the anguish of the Elric brothers. In Gundam 00, he used cleaner animation and fluid combat choreography to sell the political scale. His direction of actors is solid, obtaining vocal performances that sustain the emotional weight of each scene without relying on exaggerated effects.

When you're tasked with an adaptation and end up with something else 🤔

The curious thing about Mizushima is that, when he ran out of material from Hiromu Arakawa for Fullmetal Alchemist, he decided to invent his own ending. The result was a conclusion that divided the audience: some love it for being daring, others hate it for being heretical. But hey, at least he avoided the mistake of padding it with fishing tournament filler. Sometimes, improvising on the fly works out well... or at least generates an eternal debate on the forums.