Yigao Wu is a member of the Yellow Heads.
Yigao is first seen as one of the "landsharks" threatening Guixiang Lee, until Ryo Hazuki stops them. He is seen again while Guixiang is teaching Ryo the Hind Blow move. He came for payback and lets Mengxia Zhang handle him. However, Ryo performs the Hind Blow on Mengxia and the two cowardly flee.
- Yigao's zodiac sign is Libra and he has a AB blood type.