Dianne Doan is a Canadian actress. She had her career beginnings in 2013, debuting in an episode of Once Upon a Time. That same year, she also appeared in an episode of Impastor. Later in 2015, she gained recognition for her role as Lonnie in the Disney television movie Descendants. She has since reprised her role in the sequel Descendants 2. Doan then became known for her recurring role as Yidu in the historical drama Vikings. She went on to star in the web series Guidance, after which she guest-starred in Legends of Tomorrow. Recently, she appeared in 3 episodes of Good Trouble. She currently stars as Mai Ling in the Cinemax series Warrior.