Luan, Sai, and Chat are secondary characters in The King of Fighters series. They were first introduced in The King of Fighters 2001 in one of Lin's win poses. Luan is a black haired woman dressed in orange clothing, Sai is a very tall and muscular man, with a strange shaped head with an Yin-Yang symbol and orange skin, and Chat is the child-like figure with big hands.
In their KOF 2001 appearances, Luan and Chat are voiced by Yumi Kakazu, while Sai is voiced by Takaya Kuroda.