
Birthday
1991/03/08 (34 years old)
Gender
Male
Place of Birth
Wonju, Gangwon, South Korea
Also know as
윤지성, 워너원, Wanna One, 尹智圣, Yoon Ji Sung, Jisung, 지성, Чжисон, 김유찬, Kim Yu Chan, Yoon Byeong Ok, 윤병옥
Yoon Byung Ok, later legally changed to Yoon Ji Sung, is a South Korean singer, dancer, actor, and former member of WANNA ONE (워너원). He graduated from National Traditional Arts High School and later obtained a bachelor's degree in Theater and Film from Myongji College and a master's degree in Performing Arts from Dongguk University. Before debuting, he was a trainee at MMO Entertainment and served as a backup dancer of FIESTAR member Cao Lu. In mid-2017, he participated in the survival competi...Read more

(2018) Wanna One World Tour One: The World in Seoul
as Himself

(2018) Baek Jong-won's Alley Restaurant
as Self

(2021) Let Me Be Your Knight
as Kim Yoo-chan

(2018) Wanna One 컴백 쇼 POWER OF DESTINY
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(2018) 워너원 COMEBACK
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(2017) COMEBACK WANNA ONE : Nothing Without You
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(2017) Wanna City
as Self

(2017) Master Key
as Self

(2023) The Seasons
as Self

(2016) Produce 101
as Himself

(2022) Boss Pet
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(2017) Wanna One Go
as Self

(2015) Men on a Mission
as Self

(2018) Amazing Saturday
as Self

(2011) SNL Korea
as Himself

(2018) Idol Room
as Himself

(2011) Weekly Idol
as Himself

(2022) Hyunjae’s Now
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(2018) Star Road
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(2023) Music in the Trip
as [Team Senior]

(2025) Thundercloud Rainstorm
as Lee Il-jo

(2021) Idol Live Agent
as ---