Ch'en Ta Erh – the assassin. Protagonist.
Kyo Gisors – the leader of the revolt. Protagonist.
Baron De Clappique – a French merchant, smuggler, and obsessive gambler. Protagonist.
Old Gisors – Kyo's father, one-time Professor of Sociology at the University of Peking, and an opium addict, acts as a guide for Kyo and Ch’en
May Gisors – Kyo's wife and a German doctor, born in Shanghai
Katow – A Russian, one of the organizers of the insurrection, he is burned alive for treason.
Hemmelrich – A Belgian phonograph-dealer.
Yu Hsuan – His partner.
Kama – A Japanese painter, Old Gisors' brother-in-law.
Ferral – President of the French Chamber of Commerce and head of the France-Asiatic Consortium. He struggles with his relationship with Valerie because he only wishes to possess her as an object.
Valerie – Ferral's girlfriend.
Konig – Chief of Chiang Kaishek's Police.
Suan – Young Chinese terrorist who helped Ch’en, later arrested in the same attack in which Ch'en was killed.
Pei – Also helped Ch’en.