Gallen Lo Ka-leung (Chinese: 羅嘉良) is a Hong Kong actor and singer who primarily acts in television series. He is sometimes credited as King Gallen or Law Ka-leung.Lo started his television career in 1984 at ATV. He received short-term success in acting ATV and singing theme songs for some ATV series. Lo left ATV for rival TVB, but his career did not bloom until 1996, when he was cast in the series Old Time Buddy in 1997 and Secret of the Heart in 1998. Lo won TVB's Best Actor Award three times (1997, 1998, 2002).