John Ching Tung (Chinese: 程東) is a Hong Kong film actor and producer. He is perhaps best known for playing Cyclops in the God of Gamblers franchise as well as appearing in many Stephen Chow movies. He once told reporters, "Although I am not afraid of acting as a bad guy, there are still two roles he refuses to play. One is a rapist and the other is Japanese. I am afraid that my daughter will not understand that. I'm also afraid it will cause controversy and will be stereotyped". (오뜨랑에서 실시간으로 번역된 한글 프로필도 확인할 수 있어요) 2025년 풍림화산에서 Don Rodent 역을 맡았다. 2025년 大哥大에 출연했다. 2025년 千局神算에 출연했다.