Alex Duong, a prominent figure in the Los Angeles comedy scene and a television actor, died at 42 following a battle with a rare and aggressive form of cancer.

He passed away at St. John’s Hospital in Santa Monica after being hospitalized with septic shock, according to close family friend Hilarie Steele.

Steele shared a statement with TMZ, expressing the sadness of the loss and gratitude for the support received.

Prior to his diagnosis, Duong had been preparing for an ambitious year: a planned tour spanning 41 states, with several dates alongside Ronny Chieng.

Duong is also known for roles on prominent TV shows, including 'Dexter', 'Everybody Hates Chris', and 'Pretty Little Liars', as well as writing for Netflix’s 'Historical Roasts'.

He was perhaps best known for his recurring role as the criminal and gang leader Sonny Le in the American police procedural 'Blue Bloods'.

Duong's medical bills eventually rose to six figures, prompting friends to organize a GoFundMe to help cover costs and offset lost income.

In August, a lineup of comedians including Atsuko Okatsuka and Andrea Jin gathered at Largo in Los Angeles for a benefit show titled 'The Alex Duong Has Cancer In His Eye Comedy Benefit Show'.

Duong was born the youngest of six children to Vietnamese and Chinese parents in Dallas, Texas, before moving west to pursue a career in entertainment.