1st appearance of Shang-Chi, the Master of Kung-Fu. 1st appearance of Sir Dennis Nayland-Smith. 1st appearance of Fu Manchu, father of Shang-Chi, later renamed Han, then Zheng Zu. 1st team appearance of Si-Fan, a secret society with allegiances to Fu Manchu. 1st appearance of Shang-Chi's unnamed mother, an American - later retconned in Shang-Chi #4 (2021).