Yu Jun-sang graduated from Daewon Foreign Language High School, Dongguk University in theater and film, and earned his Master‟s Degree in Film and Musical from the Graduate school of Myongji University. He was inspired by Lee Man-hui, Yu Jun-sang‟s high school teacher and a screenwriter, to become an actor. He was employed as the 5th of Seoul Broadcasting System Talent Recruitment in 1995. He has performed a number of roles in musicals including Grease (1998), Jack the Ripper (2009), The Three Musketeers (2009), Rebecca (2013), Frankenstein (2015), Ben-Hur (2017), and Barnum: The Greatest Showman (2018). He has received numerous awards such as the Best Male Actor Award at the Korea Musical Awards 2002 and the Star of the Year Award at the Daegu International Musical Festival Awards 2018. He has also performed on TV shows including The Land (2004), Marry Me! (2004), Inspector Park Moon Soo (2002), Fox and Cotton Candy (2001), Life Is Beautiful (2010), and Full of Sun (2000). He became one of the most beloved actors for his role in a TV show, My Husband Got a Family (2012). He has also performed in films with starring in In Another Country (2012) and A Matter of Interpretation (2014). His performances have established him as one of the most acclaimed actors in Korea, and as the recipient of numerous drama and film awards.