Alexander Duong (March 20, 1984 â March 28, 2026) was an American comedian and television actor. He was best known for playing the recurring role of criminal and gang leader Sonny Le in the American police procedural television series Blue Bloods.
Duong was born in Dallas, Texas, the son of Vietnamese parents. He attended and graduated from North Dallas High School. He began his career as a stand-up comedian in the early 2000s. He first worked as a doorman at The Comedy Store, and performed at The Laugh Factory. He then began his screen career in 2006, appearing in the UPN semi-autobiographical sitcom television series Everybody Hates Chris.
Duong guest-starred in television programs including The Young and the Restless, 90210, Mad TV, Death Valley, and Dexter, and played the recurring role of Genghis Khan in the YouTube comedy television series The Cost of Living. In 2018, he was featured in the third season of the Comedy Central roast comedy competition television series Jeff Ross Presents Roast Battle, battling comedian Robin Tran.
In 2018, Duong was married to Christina, a dental hygienist. Their marriage lasted until Duong's death in 2026.
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.