Kim first appeared on a 2002 magazine cover of Vogue Girl Korea, and also modeled for MTV Asia in 2005 before starring in several music videos. She made her acting debut under the stage nameWoori, which means "us" in Korean, making it difficult for her name to be searched on internet portals. She reverted to using her real name Kim Yoon-hye during the promotions for horror-comedy film Ghost Sweepers in 2012. Kim next appeared in the TV dramasHeartstrings,[2]I Need a Fairy (also known as Sent from Heaven),[3] and My Cute Guys.[4] In 2013, she garnered positive reviews for her portrayal of a cold and aloof high school girl in romantic thriller Steel Cold Winter.[5][6]
In September 2022, Kim signed with new agency J-Wide Company.[7]
^Kim Bo-young (September 8, 2022). "김윤혜, 제이와이드컴퍼니 전속계약…김소연·이보영 한솥밥 [공식]" [Kim Yun-hye signed an exclusive contract with J-Wide Company... Kim So-yeon, Lee Bo-young One Pot Rice [Official]] (in Korean). E-daily. Archived from the original on September 8, 2022. Retrieved September 8, 2022 – via Naver.
^Hwang Chae-hyun (October 1, 2021). "김윤혜, 영화 '더씬' 주연 캐스팅" [Kim Yun-hye cast as the lead in the movie 'The Scene]. Sports Kyunghyang (in Korean). Archived from the original on October 1, 2021. Retrieved October 1, 2021 – via Naver.
^Jang Jin-ri (September 15, 2021). "[단독]'빈센조' 김윤혜, '별똥별' 출연…경호원 출신 매니저 변신" [[Exclusive] 'Vincenzo' Kim Yun-hye to appear in 'Shooting Star'... Changed from bodyguard to manager]. Sports TV News (in Korean). Archived from the original on September 20, 2022. Retrieved September 15, 2021 – via Naver.
^An, Byeong-gil (2024-03-06). "김윤혜 '인사하는 사이' 출연, 한지민과 호흡" [Kim Yun-hye cast in ‘Greetings’, working with Han Ji-min]. kyunghyang – via naver.
^Oh Dong-hyun (December 9, 2021). "OTT 시즌, 12월 독점공개 콘텐츠…'미드나잇 스릴러' 등" [OTT season, exclusive content released in December… 'Midnight Thriller', etc.] (in Korean). Newsis. Archived from the original on December 9, 2021. Retrieved December 9, 2021 – via Naver.
^Lee Mi-ji (January 13, 2022). "넷플릭스 '종말의 바보' 안은진X유아인X전성우X김윤혜 출연확정(공식)" [Netflix 'The Fool of the End' confirmed to appear in Eunjin Ahn, Ah-in Yoo, Seong-woo Jeon, and Yun-hye Kim (official)] (in Korean). Newsen. Archived from the original on January 13, 2022. Retrieved January 13, 2022 – via Naver.