Born as Dong Chuan-Yuan in Tainan, Taiwan; Chuen is also known as Kang Jia. His mother is Dutch, and his younger brother Kang Hua was a boxer and later joined the showbiz. The two brothers achieved fame early in their careers by starring in Taiwanese-speaking films, then they moved to Hong Kong to work for Shaw Brothers. Chuan Yuan's Shaw debut was Wu Chia-Hsiang's "Dark Semester", where he was lauded for portraying a street punk. He then starred in a leading role in "The Night Is Young" directed by Lo Chien and co-starring Yu Feng. Chuan Yuan's other notable works in the 1970s include "Vengeance!", "The Duel" (1971), "The Long Chase", "The Lady Hermit", "The Thunderbolt Fist", "Imperial Swordsman" and "The Virgins".
From the Celestial DVD edition of "The Thunderbolt Fist".