Ryeoun is an actor born Go Yoon Hwan in Wansan-gu, Jeonju, Jeollabuk-do, South Korea. He graduated from the department of performing arts of Seokyeong University, majoring in acting. He made his acting debut in the 2017 SBS drama "Temperature of Love" (사랑의 온도). He won the Best New Actor award at the SBS 2022 awards. In 2023, he had his first and second television lead roles in The Secret Romantic Guesthouse and Twinkling Watermelon.

出生于韩国全罗北道全州市万山区。他毕业于石庆大学表演艺术系，主修表演。他在2017年SBS电视剧《爱的温度》（사랑의온도）中首次亮相。他获得了SBS 2022颁奖典礼的最佳新演员奖。2023 年，他在《秘密浪漫旅馆》和《闪闪发光的西瓜》中担任了第一个和第二个电视主角。