He was 48.
Nguyen appeared in several episodes of The Walking Dead Season 3 under his stage name Dango Nu Yen. He played a guard who worked for The Governor on the hit AMC drama series.
He followed up that series with roles in other shows like Banshee, The Red Road, and more recently, Star.
His other TV credits include The Originals, MacGyver, Lodge 49, and Meet the Browns.
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On The Originals, in particular, Nguyen had two roles. He first appeared on The Originals Season 1 as a Daywalker, part of Marcel's inner circle.
He returned for The Originals Season 4 as Inadu's Father in a flashback-heavy installment.
Before he began his acting career, Nguyen served as a firefighter in the Athens-Clarke County Fire Department in Georgia.
He served for almost 20 years.