Takashi Takeuchi is a Japanese illustrator and character designer, best known for his work in the anime and video game industry. He co-founded the visual novel studio Type-Moon and gained fame for his contributions to the Fate/stay night series, where his character designs played a significant role in the franchise's popularity. In addition to his work on Fate/stay night, Takeuchi has also contributed to various other projects, including Tsukihime and Kara no Kyoukai. His distinctive art style combines elements of traditional Japanese aesthetics with modern design, making his characters memorable and influential in the world of anime and gaming.