Zhan Huai-yun (Chinese: 詹懷雲; born 21 August 1998) is a Taiwanese actor best known for his debut role as Lefty in the historical comedy film Meeting Dr. Sun (2013), which earned him a nomination for Best Newcomer in the 9th Asian Film Awards. He stepped away from showbiz in 2016 to pursue a career in rapping, and returned to acting in 2023 with the Netflix political thriller series Wave Makers. In 2024, he starred in another Netflix series Born for the Spotlight.