His name is Billy Chen, an unknown director. Fans should be familiar with him. In his early years, like Ching-Ying Lam, he was Bruce Lee's partner.

Billy Chen and Chen Long are brothers. Chen Long is the eldest brother. Later, he worked as a martial arts designer in Hongjiaban (such as Hu Jinquan's Woman and Jackie Chan's Long Zhixin), and played a supporting role in several kung fu fantasy movies in Hongjiaban. In the 1990s, he made several films, mostly about fantasy movies. In 2006, he returned to his old job and worked with Yuan Bin as the action director of the TV series Seven Swords Down the Tianshan Mountains.