Kean is twenty-eight years old and lives in Washington, DC. After his parents died in the crossfire when he was fifteen, he dedicated himself to officer career. He is one of the best students who early graduated from FBI academy and was already recruited to CIA in his twenties. Kean became one of the best special agents in CIA in the organized crime unit due to his intelligence. After he became a special agent, Kean became reserved, hiding under a serious face and sarcastic remarks.