Fumihiko Tachiki

Fumihiko Tachiki is best known for voicing Sloth, the towering homunculus, throughout Fullmetal Alchemist: Brotherhood, the 2009 anime produced by studio Bones. Active in the industry since the early 1980s, he has built his career largely around commanding, often villainous figures across anime and tokusatsu.

Fumihiko Tachiki is a Japanese voice actor and narrator born in 1961 who has worked in the industry since 1982. Alongside his anime roles, he also has a career as a live-action actor, giving him a broader resume than most anime-only performers.

Tachiki gives Sloth a deep, gravelly delivery that adds an unsettling, masculine edge to the character's outwardly feminine appearance. That vocal contrast became one of Sloth's defining traits in the 2009 Brotherhood adaptation.

Fumihiko Tachiki has built a career largely on commanding, often villainous figures across decades of anime and tokusatsu work, a pattern that includes his role as the homunculus Sloth in Fullmetal Alchemist: Brotherhood. He balances that anime work with a parallel career as a live-action actor.

Fumihiko Tachiki has been active in the industry since the early 1980s, with his career beginning around 1982. Over four decades he has become known as one of anime's reliable heavyweight voices, playing imposing, larger-than-life antagonists.