Song Ji-hyo

Song Ji-hyo (born Cheon Seong-im, August 15, 1981) is a South Korean TV and film actress. She is well known for her television character portrayal of ballerina Min Hyo Rin in Princess Hours, Lady Ye So-ya in Jumong and as the Queen in the film A Frozen Flower. Currently, she appears on TV frequently as a member of Running Man, a popular Korean variety show.

Before debut as an actress, she was a model. In 2001, Song appeared in the music video for Lee Soo-young "And I Love You" and also in 2004, she appeared in the music video for JTL "Just Say Goodbye".

In 2006, Song appeared in the music video for Stay "믿을수없는말".

She was co-MC with Heechul of Super Junior on SBS's weekly live music show Inkigayo, from 11 November 2007 to 4 May 2008. Song also co-MC the 2009 Dream Concert with Heechul, which was held at the Seoul World Cup Stadium on 10 October.

In 2010, She appeared in two music video for Young Jee "Don't Listen To This Song".

She is currently a cast member of SBS variety show Running Man. Song was originally a guest for the second (episode 2-3) and third landmark (episode 4-5). She officially joined the program in the fourth landmark (episode 6) but was unable to attend until the fifth landmark (episode 7). Some of her characters on the show are Mong (blank) Ji-hyo (멍~ 지효), The Ace (에이스), Miss Mong (미스멍), Bad Ji-hyo, and one half of the Monday couple with Gary.

In 2011, She appeared in two music video for JYJ "In Heaven" and Young Jee "Not At All".

In November 2012, Song starred opposite label-mate Kim Jaejoong of JYJ in film Jackal is Coming. Song plays a clumsy female assassin who kidnaps Hallyu star, played by Jaejoong. Song received extensive training prior to the start of filming in May, and her first scenes involved a flip off from a 2 meter-high stack and other including scaling walls and hand-to-hand combat.

Ji-hyo currently dated Baek Chang-joo, who is the CEO of her current agency. Their relationship started on November 2011.

Lee Kwang-soo

Lee Kwang-soo (Hangul: 이광수; Hanja: 李光洙; born 14 July 1985) is a South Korean model, actor and entertainer, well known as a cast member of SBS's variety show Running Man.

He gained a lot of popularity after joining SBS's Good Sunday popular variety show Running Man.He is well known as the framing master, betrayer and lately giraffe, previously Kwangvatar (the mixed of his name Kwangsoo and Avatar) and now more commonly and popularly known as "The Asian Prince", due to his overwhelming popularity during Running Man's episodes in other Asian Countries (Thailand, Hongkong, China, Macau and Vietnam).

In 2010 he won his first Variety Entertainment Award at the SBS Entertainment Awards, as the 2010 Variety New Star of the Year. In 2011 he won the award from SBS, Entertainment Awards 2011, for category "New Star Award".

Kim Jong-kook

Kim Jong-kook (born April 25, 1977) is a South Korean singer and TV personality. He was initially part of the Korean duo Turbo, later pursuing a successful career as a solo artist. Apart from being a 3 Daesang Award Winner Singer, he also participates actively in many variety shows including Running Man and Family Outing since episode 19.

On March 2006, Kim Jong-kook received his mandatory military service enlistment letter at the height of his popularity and career. Kim Jong-kook also released his fourth album around that time. Since he unable to directly promote it while in the military, he used the unorthodox methods. To comply with the Korean law, the music video was shot so that his face would never be seen on screen. Also, in order to raise awareness, Kim Jong-kook's rumored girlfriend Yoon Eun-hye was asked to star in the music video. Though there has been no direct promotion, his fourth album has sold in excess of 100,000 copies.

It was announced in late April 2008 that the singer would end his military service on May 23, 2008. On that day, he was greeted by fans, and during his interview, he said that he was "relieved". His fifth studio album was released on October 22, 2008 as "Here I am" with the featuring song as "Today More than Yesterday" and "Thank You." Proving false the "tradition" of not being able to rise once again after military service, Kim Jong-kook made a successful comeback, making one album, one digital single [Happy Virus] and one trot [Ddajo].

Kim Jong-kook also returned to television, becoming a permanent member of variety show Family Outing, part of SBS's Good Sunday lineup and earning popularity, especially with the love scandals between Lee Hyori and Park Ye-jin. Kim Jong-kook's Hoolala CF with Kim Sooro was released on July 2009. He has also posed for many advertisement for clothing. His sixth album was released on January 27, and a preview of the album was released with the song "Don't Be Good to Me." However the title song for the album is titled "This is the Person". The music video for the song included Park Ye-jin who is famous for the "Family Outing Scandal" between Kim Jong-kook, Lee Hyori and Park Ye-jin. His sixth album is titled "The Eleventh Story" because in his music career, he has so far released 11 albums. It included 3 MV. Right now, he is a regular on SBS's Running Man.

On August 27, 2010 Kim Jong-kook received a lumbar microdiscectomy back disk surgery at Seoul’s Kwan Ahk Goo Chung Ryong Dong Kangnam Choice hospital. Kim Jong-kook’s management company, 101 Entertainment, stated, “Kim Jong-kook carried on with his daily activities without knowing that he had a ruptured disk. He did feel pain, but didn’t think much of it, and he endured his condition with painkillers while filming SBS Running Man.

Kim Jong-kook active participation in SBS Running Man makes him one of the big names in Korean Variety Shows World. He had been called "SpartaKook" and "The Commander" throughout the SBS Running Man and he has received a favorable evaluation leading the mission with his muscular body and extraordinary intelligence. This proved as he won SBS 연예대상 (SBS Entertainment Awards) Best TV Star Award on 2010 and SBS 연예대상 (SBS Entertainment Awards) Excellence Award on 2011.

Ji Suk-jin

Ji Suk-jin (Hangul:지석진 ; or spelled Ji Seok-jin; born on February 10, 1966) is a South Korean comedian and broadcaster. He graduated from Ajou University with a bachelor's degree in Business Administration. In 1992, he first debuted as a singer, releasing his first single "I Know".

Ji-Suk-jin gained popularity as a main MC through the show called Star Golden Bell, which aired from 2004 to 2010. He is currently a cast member in the variety show Running Man together with Yoo Jae-suk, Kim Jong-kook, Kang Hee-gun (Gary) of LeeSsang, Ha Dong-hoon, Song Ji-hyo, and Lee Kwang-soo.

HaHa aka Ha Dong-hoon

Ha Dong-hoon (Hangul: 하동훈; born on August 20, 1979), better known by his stage name Haha (Hangul: 하하) is a German-born South Korean recording artist, actor, presenter and stand-up comedian. He is best known for being in the sitcom, Nonstop and for co-hosting two popular variety programs, MBC's Infinite Challenge and SBS's Running Man.

In February 2008, Haha temporarily left Infinite Challenge in order to serve his national service for the army. Previous reports had stated that he had been attempting to evade his military service however, these reports were confirmed to be false and Haha's service had only been postponed. During his service, he collaborated with a new group Davichi in their song "Love and War". After 24 months of serving the military, on March 11, 2010, he was discharged from the military.

After finishing his military service, Haha returned to the cast of Infinite Challenge following the requests from fellow co-hosts Yoo Jae-suk and Noh Hong-chul. He also made regular guest appearances on Yoo Jae-suk's talk show Come to Play and was the co-host of the Haha-Mong Show with MC Mong up until allegations had sprung up that MC Mong had attempted to evade his military service. Since 2010, Haha is one of the co-hosts for SBS variety show, Running Man. On December 30, 2011, Haha received the award for "Best Entertainer" during the 2011 SBS Entertainment Awards for his work on Running Man. He also performed his single, "Rosa" during the award ceremony.

On 15 August 2012, it was announced that he will marry South Korean singer Byul. The couple married on 30 November 2012. Their first child was born on 9 July 2013.

Kang Gary

Kang Hee-gun (Korean: 강희건, Hanja: 姜熙建; born February 24, 1978), better known by his stage name Garie (Korean: 개리, often spelled as Gary) is a South Korean rapper, songwriter, lyricist, record producer, dancer, entertainer, promoter, television personality, restaurateur and founder of Leessang Company. He is member of hip-hop duo, Leessang. He is also currently a cast member of the variety show Running Man. He is also an avid skateboarder.
Gary was born on February 24, 1978. Gary's family consists of his mother, his father, and his brother. Back when Gary was still in school. He was more interested in dance than music and wanted to become a Korean celebrity. Because Gary's nickname in middle school was "Geh", AKA "dog," he made his performing name "Garie" or "Gary." During his high school years, Gary performed as a back-up dancer and also won dance competitions. Gary also went to Yongin University, but later was expelled. At the age of 20, Gary started boxing for 10 years and became an amateur boxer. He was also an 8th degree black belt in martial arts.

Yoo Jae-suk

Yoo Jae-suk (Hangul: 유재석; or spelled Yu Jae-suk; born on August 14, 1972), is a South Korean comedian and television comedy show host. Nicknamed the "MC of the nation" (국민 MC), a vote by South Korean "netizens" proclaimed him the most popular Korean comedian for five consecutive years beginning (2004-2008). He has hosted several variety television shows in South Korea, including the hugely popular programs Infinite Challenge and Running Man. Nicknamed "The Grasshopper", due to early appearances dressed as a grasshopper, he is now known for his quick wit and appeal across a wide range of demographics. He has established himself as one of Korea's top comedians and TV personalities.

On Infinite Challenge

On Infinite Challenge, Yoo Jae-suk is not only the program's host-in-chief where he leads all Infinite Challenge members to reach the goal of each episode, but also contributed to give several creative inputs for the program as seen on "Mudo Style, Beijing Style" and "2012 Introducing Ugly Friend Festival" specials. Due to his leadership presented to this program, a new kind of cult has been created called "Infinite Jae-seok Cult" (Korean: 무한재석교) and he becomes a spiritual leader of this false-religion. The official followers are Ha Ha and No Hongchul (from the episode of Season 3, episode 61), and the official motto is "I shall make you laugh" (내가 너희를 웃기게 하리라).

Also during the New Zealand series, he got caught smuggling pornographic videos during the baggage check, which was hidden by the second host in charge: Park Myung-Soo. This sketch was well received by the Korean netizens and Jae-seok became "Ero Jae-seok". Even now, over seventy episodes later, he still is made fun of for watching pornographic videos which he hadn't watched.

He has been called "Class-president Yoo" (유 반장) for so many episodes of Infinite Challenge, but since "Palace Millionaire" special (Slumdog Millionaire parody, where Infinite Challenge members tour old palaces in Seoul), Yoo has been nicknamed "Delinquent Yoo" (날 유), for having meetings with girls at these palaces back when he was a high school student. This nickname later inspired the creation of Sagging Snail (a duo consisted of Yoo Jae-suk and musician Lee Juck)'s famous song "Apgujeong Nallari" (압구정 날라리), which featured on "2011 West Coast Highway Music Festival" special

His another nicknames has been "An Animal Racer" (짐승 레이서), "A Genius Racer" (천재 레이서), and "Yoomacher" (유 마허), thanks to his excellent driving skills shown during Infinite Challenge Formula One (F1) special.

Contrary to his usual nice and kind character, Yoo Jae-suk's alter ego, "Manager Yoo" (유 부장), during sketch-based "Muhan Company" episodes showing an authoritarian, iron-handed, and highly discipline character toward the staff of his department. Yoo Jae-suk's "Manager Yoo" character itself is quite opposite to the slow-minded, tactless character of "Head of Section Jung" (정 과장) that portrayed by Jung Jun-ha, who being older than Manager Yoo and entered the company together in the same time, but never get any promotion due the latter's lack of creativity. Manager Yoo's antagonistic nature to Head of Section Jung had been showed up occasionally, especially during "Muhan Company Musical" special

On Family Outing

The vital power of the instant success of Family Outing has been the characters' relationships. Two of the most successful character pairings has been "The Nation's siblings" (국민 남매) with Lee Hyo-ri and "Dumb and Dumber" (덤 앤 더머) with Dae-sung of Big Bang. Yoo has been the driving force of those two character relationships, as program's host-in-chief and regular member of the family.

On Running Man

Although at first he is considered one of the weak ones, Yoo is always portrayed as the rival of Kim Jong Kook. He often calls himself "Yooruce Willis" (유르스 윌리스) when being chased by Kim "Sparta" Kook but he often gets caught in the end. However, in later episodes, he became one of the top three strongest members (the others are Kim Jong-kook & Song Ji-hyo) of Running Man who could potentially pose a threat to win any of the missions.