Yoon Seo-ah

Im Sun-woo (; born September 30, 2000), known by her stage name Yoon Seo-ah , is a South Korean actress. She is known for her supporting role as Seo Ji-wan in the Netflix series Nevertheless.

Career

In her high school days, Yoon joined a short film production club. and later appeared in another series named Love Revolution.

Throughout 2022, Yoon portrayed guest roles such as Go Hye-rim in Juvenile Justice and Kim Seo-yeon in Soundtrack#1. She also played a supporting role as Ddong-geum in Bloody Heart. Later, she played the supporting role of Oh Nu-ri in drama Today's Webtoon.

In 2024, Yoon portrayed Chae Young-ji in the Netflix sci-fi dystopian series titled Goodbye Earth. She starred as Baek Yi in the JTBC romance historical drama titled The Tale of Lady Ok, alongside Lim Ji-yeon, Choo Young-woo, Kim Jae-won, Yeonwoo and Kim Mi-sook.

In 2025, Yoon starred as Seo Gil-geum in the fantasy survival romance television series titled Bon Appetit, Your Majesty, alongside Im Yoon-ah, Lee Chae-min and Kang Han-na.

On November 13, 2025, it was announced that Yoon will star in the upcoming Netflix fantasy romantic comedy series titled Beauty in the Beast, alongside Kim Min-ju, Moon Sang-min and Lomon, which revolves around a freshman student werewolf who—adapted to society—in enrolled at a university and falls in love with a campus senior there.

Filmography

Television series

Web series