Career At 16, Sinn began his career as a singer at a bar on Lockhart Road , Wanchai, Hong Kong. [ 5]
In 1986, Sinn joined Chyna, a heavy metal rock band founded by Donald Ashley . After the band was disbanded, then he founded the Blue Jeans with Su Dehua, [ clarification needed ] [ 5] [ 6] [ 7]
He had his first experience in front of the camera in 1986, and he was chosen to act as a support actor in Jeffrey Lau 's Operation Pink Squad , an action film starring Sandra Ng , Guan Xiumei, [ clarification needed ] Ann Bridgewater , Elsie Chan, and Charlie Cho .
For his role as Sai-Mun Hing in The Reincarnation of Golden Lotus (1989), Sinn was nominated for the Hong Kong Film Award for Best New Performer . That same year, he participated in Tai Kit Mak's All Night Long , a story film starring Carol Cheng , Shui-Fan Fung , Elizabeth Lee , Elsie Chan , Crystal Kwok , and Wu Ma . Then he appeared as a fast food restaurant staff in Clarence Fok 's The Iceman Cometh , the film stars Yuen Biao , Yuen Wah , and Maggie Cheung .
He co-starred with Michelle Monique Reis , Natalis Chan and Iwanbeo Leung in Yuen Cheung-Yan 's Coup De Grace (1990). Sinn also filmed in Love Is Love , alongside Stephen Chow , Suki Kwan , Sandra Ng , and Sing Fui On .
In 1991, Sinn played Hussein, who is a gambler , in Wong Jing 's God of Gamblers II , an action film starring Andy Lau , Stephen Chow , and Ng Man Tat . That same year, he starred as Sai-Mun Hing in The Golden Lotus 'Love and Desire' , based on the novel The Golden Lotus by Lanling Xiaoxiaosheng .
In 1992, Sinn portrayed Gao Ya'nei, the son of Grand Marshal Gao Qiu , in All Men Are Brothers – Blood of the Leopard , adapted from Shi Nai'an 's classical novel The Water Margin . The film also stars Tony Leung , Joey Wang , and Elvis Tsui .
In 1993, Sinn had a minor role as Da Jiaoban in Wong Jing 's City Hunter , which starred Jackie Chan , Chingmy Yau , Joey Wang , and Richard Norton .
In 1994, Sinn starred in a historical film called Fire Dragon with Brigitte Lin , Max Mok , and Sandra Ng , directed by Yuen Woo-ping . He played the lead role in Whatever You Want , opposite Jordan Chan , Anita Yuen , and Law Kar-ying .
In 1995, Sinn appeared as Julian in Detective Investigation Files II , he also participated in its sequel Detective Investigation Files IV (1999).
In 2007, Sinn was cast in Ho-Cheung Pang 's Exodus , a suspense film starring Simon Yam , Irene Wan , and Nick Cheung .
Sinn had a cameo appearance in Dream Home (2010), which starred Eason Chan as Zheng Lichang's lover (played by Josie Ho ).
In 2011, Sinn acted in the romantic comedy film Lan Kwai Fong .
In 2012, Sinn had a supporting role in The Silent War , a film adaptation based on the novel Plot by Mai Jia .
