Sam Dong is a fictional character from the South Korean television series Dream High. He is portrayed as a talented but struggling student at a performing arts school, where he aspires to become a successful singer. Throughout the series, Sam Dong faces various challenges, including competition and personal growth, as he navigates his dreams in the entertainment industry. The character is played by actor Kim Soo-hyun, who gained significant popularity for his role in the show. Dream High aired in 2011 and was well-received for its engaging storyline and musical performances, contributing to the rise of its cast members in the K-drama scene.