Sammy Lau’s uncle is legendary Hong Kong film director and superstar Lau Kar-leung. At age of five Sammy followed his father Liu Chia-yung to Taiwan to make parts in movies. In 1996 Billy Lau help young actor to sign a contract with TVB. Later, he decided to leave the TVB and made his acting career reach a new milestone. In addition to TV series, Liu Yongjian also performed in movies, such as "Taxi Judge" and "Speed Zombie".
2015
as Bull Demon King
2011
as Ren Si Hai
2004
2003
as Chan Kai Yip
2002
2002
2002
2001
2001
1999
as 戴东富
1998
1997
1996
1995
as 谢耀楷 Tse Yiu Kai