Yeo One, born Yeo Chang Gu, is a South Korean singer and actor. He was born on March 27, 1996, in Daejeon, South Korea, and made his debut in the entertainment industry in 2016, as a member of the K-pop idol group, Pentagon. That same year he made his debut as an actor, taking his first role in a television drama. Since then, he has appeared in a wide variety of television reality programs and a handful of television dramas, including “Spark” (2016), “The Witch Store” (2019), “Pumpkin Time” (2021), and “Pumpkin Time (movie)” (2021).