Wonderful Radio (, also known as Love On-Air) is a 2012 South Korean romantic comedy film, starring Lee Min-jung and Lee Jung-jin.
 It is about a has-been pop star who is now a radio DJ struggling to boost listener ratings.
 It was released in theaters on January 5, 2012 by distributor Showbox/Mediaplex, and ran for 120 minutes.
Jae Hee (born Lee Hyun-kyun on May 25, 1980) is a South Korean actor.
 He is best known for his leading roles in the 2004 arthouse film "3-Iron" and the 2005 television series "Sassy Girl Chun-hyang".
Jun Ji-hyun (born Wang Ji-hyun on 30 October 1981), also known as Gianna Jun, is a South Korean actress.
 She rose to fame for her role as The Girl in the romantic comedy "My Sassy Girl" (2001), one of the highest-grossing Korean comedies of all time.
 Other notable films include "Il Mare" (2000), "Windstruck" (2004), "The Thieves" (2012), "The Berlin File" (2013) and "Assassination" (2015).
My New Sassy Girl () () is a 2016 South Korean-Chinese romantic comedy film directed by Joh Keun-shik, and starring Cha Tae-hyun and Victoria Song.
 This film, a sequel to "My Sassy Girl" (2001), was released in China on April 22, 2016 and released in South Korea on May 12, 2016.
My Sassy Girl 2 (Chinese: 我的野蛮女友2) is a 2010 Chinese romantic comedy film directed by Joe Ma and starring Lynn Hung, Leon Jay Williams, He Jiong, Abby Feng and Bosco Wong.
 The film is an unofficial sequel of the 2001 South Korean film "My Sassy Girl".
 It was released on November 5, 2010.
My Sassy Girl is a 2008 American remake of the 2001 South Korean romantic-comedy "My Sassy Girl".
 It stars Elisha Cuthbert and Jesse Bradford and was directed by Yann Samuell.
 Both films are 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.
 The film is set in New York City's Central Park and Upper East Side.
 Samuell, describes the film as "a fable about destiny, " while Bradford described it as "a romantic comedy about how they pull each other to a more healthy place by virtue of their relationship."
My Sassy Girl (Korean: 엽기적인 그녀 ; literally, "That Bizarre Girl") is a 2001 South Korean romantic comedy film directed by Kwak Jae-yong, starring Jun Ji-hyun and Cha Tae-hyun.
Cha Tae-hyun (born March 25, 1976) 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) and "Hello Ghost" (2010) as well as the television series "Jeon Woo-chi" (2012) and "The Producers" (2015).
 He made his directorial debut with the variety-drama "Hit the Top" (2017), in which he also stars.
My Sassy Girl (Hangul: 엽기적인 그녀 ; RR: "Yeopgijeogin Geunyeo " ) is a 2017 South Korean television drama starring Joo Won, Oh Yeon-seo, Lee Jung-shin and Kim Yoon-hye, based on the 2001 South Korean movie "My Sassy Girl" by Kwak Jae-yong, but during Joseon period.
 It aired on SBS from May 29 to July 18, 2017 on Mondays and Tuesdays at 22:00 (KST) time slot for 32 episodes.
Sano Sansar (Nepali: सानो संसार , translation: Small World) is a 2008 Nepali romantic comedy film directed by Alok Nembang.
 The film has a massive star cast which includes Neer Shah and newcomers Mahesh Shakya (popularly known Karma), Jiwan Luitel and Namrata Shrestha.
 Sano Sansar is director Alok Nembang's directorial debut and is the second Nepali HD movie made after "Kagbeni".
 The film is heavily influenced by the Korean movie "My Sassy Girl" and the English-language movie "You've Got Mail".

Question: My New Sassy Girl is a 2016 South Korean-Chinese romantic comedy film, starring which South Korean actor, singer, television personality radio DJ and director?
Answer: Cha Tae-hyun