Sadon has brown hair and wears a green beenie. He also sports jeans and a red shirt. Sadon wears a denim jacket with the sleeves removed.
Sadon is a criminal who appears in chapter 1 of the black cat manga. Train and Sven have just tracked him down and are turning him into the authorities. He had a bounty of 800,000 yen.
- Sadon is the first character to appear in the manga.