Arnold Chon is a stunt performer who appeared as one of Zhou Yong's henchmen in Season 6. He infiltrated CTU via the sewer in Day 6: 2:00am-3:00am, and then in the next episode stood guard over Jack, hitting him with his gun at the start of the episode. Later, he was shot by Jack in the corridor. Chon is a notable martial artist who has provided stunts for many films and TV shows.