Eddy Ko Hung (Chinese: 高雄; Jyutping: gou1 hung4; born Ho Yiu-sum (何耀深); born 26 December 1944) is a Hong Kong actor and martial artist. He has appeared in over 150 film and television roles since his debut in 1969. He is perhaps best known for his roles as Chan Chung in the 1984 Hong Kong action war film Heroes Shed No Tears, and Hong in the 1998 American buddy cop action film Lethal Weapon 4. Most recently, he has made appearances in several international films including 2015's The Martian. (Via Wikipedia)