Gao Hai is a character from Code Geass. He is one of the High Eunuchs of the Chinese Federation as well as a General.
Gao Hai arrives at Area 11, with Li Xingke as his bodyguard. Greeting him on his arrival is the new Viceroy of Area 11, Calares, who has a large security force with him in order to allow the Chinese Federation a better understanding of the Britannians. However, Xingke is asked to release his weapon who instead cuts the belts of Britannians to have a better understanding of the Chinese Federation. Their meeting is interrupted as an explosion was seen from Babel Tower.
Following that meeting, he fell under Lelouch's Geass. And while under the influence of Lelouch's Geass, he grants asylum to the Black Knights within the grounds of the Chinese Consulate. Afterwards, Xingke questions Gao Hai's motives in following Zero. When Gao Hai claims Zero is more important then Empress Tianzi, Xingke see's this as a disloyality towards Empress of the Chinese Federation Tianzi, and executes Gao.