Alex Duong was an American comedian, actor, and writer. He was born on March 20, 1984 in Dallas, Texas.
Duong was best known for playing the recurring role of criminal and gang leader Sonny Le in the American police procedural television series Blue Bloods. He guest-starred in several other television programs including The Last Ship, Pretty Little Liars, The Young and the Restless, Death Valley, 90210, Dexter, Mad TV, and Everybody Hates Chris, and played the recurring role of Genghis Khan in the YouTube comedy television series The Cost of Living.
In 2025, Duong was diagnosed with alveolar rhabdomyosarcoma. He died of septic shock at the Saint John's Health Center in Santa Monica, California, on March 28, 2026, at the age of 42.
