Name: Chow Loo
First Appearance: The Deadly Hands of Kung Fu #4 (Sep. 1974): "Circle of Serpent's Blood"
Number of Appearances: 1
Enemy of: Shang-Chi
Worked for: Fu Manchu
Chow Loo was an assassin who was a member of Si-Fan, an organization or quasi-religious group of assassins who worked for Fu Manchu. Specifically, Chow Loo was a member of the Circle of the Serpent's Blood, a sect within Si-Fan.
Chow Loo was transformed into an ape-like creature after he failed Fu Manchu.
Chow Loo battled the hero Shang-Chi, but was defeated when he fell to his death.
Suggested links for further research about this character and the character's religious affiliation: