Lim Ju-hwan played his debut role in the SBS drama series ‘Magic’ which aired in 2004. This was after his brief modelling journey. Following it, he played a minor role in the 2005 drama ‘A Love to Kill’. Then, in 2016, Lim was introduced to the film world with ‘A Millionaire’s First Love’. He also played the childhood role of the main character ‘Hyun-ki’ in ‘Arang’ released in 2006. His roles were short and supportive at the beginning of his acting career. This included the roles in ‘Boys over Flowers’ which was aired in 2006 and ‘The Snow Queen’ released in 2009.

Lim’s charm and impeccable acting scooped a lot of female followers. However, the role he portrayed as a blind painter in episode 10 of the 2007 drama ‘Auction House’ aired on MBC, gained him much deserved appreciation.

The major headway in Lim Ju-hwan’s acting career came with his role as Park Gyu in the 2009 release ‘Tamra, The Island’. Initially, the drama received mixed reviews and did not push through as expected. The storyline established the relationship between foreigners and Korean natives in the 17th-century Joseon era. It is a blend of romantic comedy and historical fiction which made it a cult favourite in no time. This MBC series also gave Lim his first award under the category ‘New Actor of the Year’ award at the ‘Korean Culture and Entertainment Awards’.

To cater to his Japanese fans, he did a special 2-episode drama ‘Marriage War of Doenjang-kun and Natto-chan’ in 2010. The storyline narrates the romantic fable of a Japanese woman and a Korean man. Ju-hwan’s role as a cynical youngster in the musical drama series ‘What’s Up’, released in 2010, played alongside Big Bang member Daesung and actress Jang Hee-jin, is also a notable role in his filmography. Apart from drama acting, he did some movies including ‘M’, ‘The Frozen Flower’ and ‘Do Re Mi Fa So La Ti Do’ in the years 2007 and 2008 respectively.

After playing the role of a big-hearted destitute in the 2011 comedy-drama ‘The Suicide Forecast’, Lim enlisted for compulsory military training. Despite having prior heart problems, Ju-hwan was admitted to the hospital after fainting during his military training. He completed his course even though he was excused from doing the rest of the training.

Lim shifted from Yedang Entertainment to Blossom Entertainment after his training in 2013. He starred in a 2013 SBS drama, ‘The Ugly Hearts’, which resumed his acting career. His next major project was the 2014 drama, ‘The Con Artists’, which was a major hit internationally. Other works that followed in 2015 were a period drama ‘Shine or Go Crazy’, depicting the budding romance between a prince and a princess, and the romantic thriller ‘Oh My Ghost‘, for which Ju-hwan received the title of ‘Best Villain’ at the ‘Annual Drama Fever Awards’.

Other major drama works include ‘Uncontrollably Fond’, ‘Broker’ and ‘The Bride of Habaek’ released in 2016 and 2017 respectively. In 2019 he gave life to the character Fakuda in the historic melodrama series named ‘Different Dreams’. ‘The Game: Towards Zero’ is a 2020 thriller series and Ju-hwan perfected the role of a forensic scientist in it. His latest project is a KBS2 series, ‘Three bold siblings’ released in 2022.

Ju-hwan also starred in some movies dealing with different genres including ‘Because I Love You’ and ‘Project Wolf Hunting’ in the year 2021 and 2022.

Apart from his acting roles, Ju-hwan has made guest appearances in two music videos-in BoA’s ‘Kiss of Heart’ and Huh Gak’s ‘Miss You’ in 2006 and 2017 respectively.