Yoo Ah-In is a South Korean actor and creative director. He has built a unique filmography that distinguishes him from other actors of the same age, playing a series of impressive characters in films and TV series. Not only is he known as an icon of youth in Korea, but also he has made remarkable achievements in numerous industry awards. Yoo is representing his generation by focusing on the growth of the characters he portrays, which is leading him to gain applause from the public. Yoo was born Uhm Hong-sik on October 6, 1986, in Daegu, Korea, as the youngest of three children. In the first year of high school majoring in fine arts, he was discovered by a casting agent in front of the school and came up to Seoul by himself to attend auditions. In 2003, He made his debut in a TV commercial for noodles under the current stage name of Yoo Ah-in. He then started to appear in teen-series Banolim (2003) and garnered a huge popularity from teenagers. After that, however, he halted his activities for one year to think about his identity and the path of acting without being influenced by popularity. Returning with independent film Uriege Naeireun Eopda (2006) and family-comedy Jochi Anihan-ga (2007), he attracted a lot of attention of critics and viewers as a promising newcomer. Yoo went on to win Best New Actor from the Busan Film Critics Association and was nominated at the Blue Dragon Film Awards. Also, he had played various roles across films and TV series, such as a lonely assassin in Choi Kang Chil Woo (2008), a patisserie aspirant and former boxer in Seoyang-goldong-yanggwajajeom Aentikeu (2008), a young assistant at the architectural office in Gyeolhon Motaneun Namja (2009), and a pizza delivery man in Haneulgwa bada (2009). In 2010, Yoo rose to prominence when he starred in Sungkyunkwan Scandal (2010), creating a syndrome called 'Geol-oh Love Sickness', which earned him praise as a unique actor in his generation. He was then cast in the coming-of-age film Wan-deuk-i (2011), met with critical and commercial success, thereby cementing his status as screen star. This was followed by the first nomination for Best Actor in his career. Since then, he had gone on to star in a wide spectrum of works, including Paesyeon-wang (2012), Jang Ok-jung, Sarang-e Salda (2013), Kang-cheol-i (2013) and Uahan Geojinmal (2014). In 2014, Yoo played a genius pianist who falls in love in melodrama Milhwe (2014), where he actually played the piano. His performance was much appreciated by musical performers, critics and audiences. The next year, he achieved considerable critical and public acclaim for his brilliant portrayals of both the villain in big-hit action film Beterang (2015) and a tragic prince in historical film Sado (2015). This also led to gaining wider recognition as an established actor when he acted the protagonist in 50 episodes of Yungnyong-i Nareusya (2015) for six months. During this period, as he gained a huge popularity and received various accolades from prestigious awards, the media called this phenomenon 'Ah-in Era'. Especially, he won the Best Actor award in the Blue Dragon Film Awards, which means that he is the first actor to win in this category under 30 in fifteen years. Later, he took a shot to romantic comedy in the ensemble film Joahaejwo (2016). The following year, he starred in fantasy TV series Sikago Tajagi (2017), where he played the double roles of a 2017 renowned writer and a leader of a resistance group in mid-1930s. In 2018, Yoo featured in a critically acclaimed film Beoning (2018) that premiered in Cannes and later made the headlines for being the first Korean film to make it into the final shortlist for the Academy Award for Best Foreign Language Film. Yoo gained international recognition, with The New York Times including him in its end-of-year roundup of best actors and Forbes seeing in him an up-and-coming star to watch. The same year, he starred in the financial drama Gukgabudo-ui nal (2018), taking over the role of a young stockbroker who predicts national bankruptcy in 1997 and bets on it. While Yoo has been pretty busy in a couple of years with his other activities such as running a art gallery, producing a talk show and proclaiming the resolution of peace, he made a brilliant comeback in 2020 when he headlined #Saraitda (2020), which became the first hit film in South Korea since COVID-19 hit the film industry and the first Korean film to top Netflix movies worldwide chart. His next performance as a mute worker without a single line throughout the film Sorido eopsi (2020), a critically acclaimed indie drama, earned him a slew of awards including Fantasia International Film Festival and Asian Film Awards. Also, Yoo became the second actor to win Best Actor twice before 40 at the Blue Dragon Film Awards, and the first actor born after the 1980s to win Best Actor in both film and TV categories at the Baeksang Arts Awards. His next roles will be those of a cult leader in Netflix series Jiok (2021), a Go player in biopic film Seungbu (2022), a ordinary man with superpower in fantasy comedy Haipaibeu (2022), and a drift driver in crime action Seoul Daejakjeon (2022). Yoo is the one of the few actors who courageously expresses his own opinions about political and social issues in the Korean entertainment industry. This allows him to acquire an unconventional image of an artist who is questioning the world and the youth who is constantly seeking answers. He is also interested in the welfare of children and adolescents, such as writing a public letter to encourage participation in donation or creating a fund named after him as well as holding the charitable campaigns through his art studio. He has written poems personally and contributed articles to magazines. In addition, he is known as a fashionista and has caused a great sensation with the design of combination of Korean and English. In particular, he is a creative director of an art group and open gallery called Studio Concrete. Yoo is trying to capture the spirit of the times, displaying various exhibits and improving access to the arts for the public.