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 Sharp (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 Boys of Tomorrow (2006) and family-comedy Skeletons in the Closet (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 Strongest Chil Woo (2008), a patisserie aspirant and former boxer in Antique (2008), a young assistant at the architectural office in The Man Who Can't Get Married (2009), and a pizza delivery man in Sky and Ocean (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 Punch (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 Fashion King (2012), Jang Ok-jung, Living by Love (2013), Tough as Iron (2013) and Thread of Lies (2014). In 2014, Yoo played a genius pianist who falls in love in melodrama Secret Love Affair (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 Veteran (2015) and a tragic prince in historical film The Throne (2015). This also led to gaining wider recognition as an established actor when he acted the protagonist in 50 episodes of Six Flying Dragons (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 Like for Likes (2016). The following year, he starred in fantasy TV series Chicago Typewriter (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 Burning (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 Default (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 #Alive (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 Voice of Silence (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.