Daisuke Namikawa
Clamp created Fai as an adult character that would assist the younger hero Syaoran and assist him in the narrative. His design was made to contrast Kurogane similar to the yin and yang. As the manga progressed, Fai's characterization becomes darker, something Clamp often dealt with to the point of struggling with the idea of killing him. In the anime adaptations of the series Fai is voiced by Daisuke Namikawa in Japanese and Vic Mignogna in English.