Oh! Youngsim: Cast Rate: –☹️ Very Bad🙁 Bad😐 Average🙂 Good😃 Excellent🤩 Super! ★ Save Rating✔ Rating Saved! Notify me: –about new episodeabout new seasonabout end of season Subscribe✔ Subscription Saved! Oh! Youngsim Romance 5/15/23 – 6/13/23 Korea, Republic of GeneralEpisodesTranslationsCastCharactersGallery Cast See full cast → Song Ha Yoon as Oh Young Sim Lee Dong Hae as Mark Wang Jung Woo Yun as Gu Wol Sook Lee Min-Jae as Lee Chae Dong