Osamu Tezuka's Star System (手塚漫画のキャラクター一覧, Tedzuka Manga no Kyarakutā Ichiran, lit. The Tezuka Manga Character List) is the name given to the recurring characters in manga created by manga artist Osamu Tezuka. Throughout his career, Tezuka frequently re-used the same character designs or names in different roles across his series; for example, the character Shunsaku Ban appears as a detective in Metropolis and as Astro Boy's teacher in Astro Boy. The name alludes to the Hollywood practice of the star system, and can be seen as analogous to film directors who work with the same actors across multiple films; Tezuka joked about how much his characters were paid, and occasionally based them on famous western actors.[1]