Billy Lau Nam Kwong (born 3 April 1954) is a Hong Kong film actor.

He is best known for playing the Police Captain in Mr. Vampire (1985), and went on to be cast in similar roles.

Lau, activists and radio hosts began a three-day sit-in protest in front of the government headquarters due to freedom of speech concerns.

Lau went on hunger strike more than 130 hours and eventually went to hospital.

[1] An Internet radio station D100 was established due to the closure of Digital Broadcast Corporation.