Sing's loyal assistant and true biological father. Revealed during Sing's crisis, he provides the limited funds ($6,000) needed for Sing's cyborg conversion, representing the moral choice of loyalty over wealth.
Tat is Lee Chak-Sing's biological father, although their relationship initially exists under an employer-assistant identity.
Lee Chak-Sing's mother reveals that Tat, his loyal assistant, is his true father.
Explore the full interactive character relationship map of Sixty Million Dollar Man