Yoo Ah In is a South Korean actor, creative director, and gallerist under United Artists Agency. He is known for playing a diverse spectrum of roles in both television and film, where he often portrays dynamic characters who exhibit significant personal growth. In 2018, Yoo starred in the mystery-drama film "Burning", directed by the acclaimed South Korean auteur Lee Chang Dong. The film received universal acclaim, competing for the Palme d'Or at the 2018 Cannes Film Festival and being shortlisted for Best Foreign Language Film at the 91st Academy Awards, becoming the first Korean film to do so. For his role as Lee Jong Su, Yoo received international critical acclaim, including being selected for The New York Times "The Best Actors of 2018" feature. For his work in film and television, he has won the Best Actor award at the Blue Dragon Film Awards and Baeksang Arts Awards. For his roles in both "#Alive" and "Voice of Silence", Yoo was named "Actor of the Year" in the 2020 Cine 21 Awards. For his performance in "Voice of Silence", a low-budget indie film, he won Best Leading Actor and Popular Star awards in the 41st Blue Dragon Film Awards and became the second actor to win the best actor award twice before the age of 40, following Sol Kyung-gu. He also won Best Actor in the Film Category in the 57th Baeksang Arts Awards. In addition to his film work, Yoo engages in social and artistic activism. He is also known for his politically and socially charged views on his social media account. In 2016, he ranked second in the Forbes Korea Power Celebrity list. He was exempted from military duty because of health issues. He was diagnosed with a bone tumor in 2015. He also ruptured his shoulder muscle while filming two action films, "Tough as Iron" and "Veteran", in 2013 and 2015, respectively. From February 8, 2023, police performed searches and seizures of various doctor’s offices, and clinics in Seoul that Watch drama online for free.