Do you know Dr. Haing Somnang Ngor ?

He was the only ASEANER won the Oscar Award, though he wasn't a professional actor.
Dr. Haing Somnang Ngor (Chinese: 吳漢潤; pinyin: Wú Hànrùn, March 22, 1940 – February 25, 1996) was a Cambodian American physician, actor and author who is best known for winning the 1985 Academy Award for Best Supporting Actor for his debut performance in the movie The Killing F

ields, in which he portrayed Cambodian journalist and refugee Dith Pran. He was also the first ever Asian actor to win an Oscar for a supporting performance and debut performance. His mother was Khmer and his father was of Chinese descent. Ngor and Harold Russell are the only two non-professional actors to win an Academy Award in an acting category.