Cha Tae-hyun is a South Korean actor, singer, television personality, radio DJ and director. He is best known for his lead roles in the box-office hit comedies My Sassy Girl (2001), Scandal Makers (2008), Hello Ghost (2010) and fantasy drama action hit Along with the Gods: The Two Worlds (2017) as well as the television series Jeon Woo-chi (2012), The Producers (2015) and Police University (2021). He made his directorial debut with the variety-drama Hit the Top (2017), in which he also starred.

My Sassy Girl is a 2001 South Korean romantic comedy film directed by Kwak Jae-yong, starring Jun Ji-hyun and Cha Tae-hyun. The film is based on a true story told in a series of blog posts written by Kim Ho-sik, who later adapted them into a fictional novel.