Park Jungsu (born July 1, 1983), better known by his stage name Leeteuk, is a singer, dancer, MC, DJ, television host, occasional actor, and the oldest member and leader of Korean boy band Super Junior.
In 2000, Park was discovered by a talent scout in Myeongdong, South Korea. He was asked to audition for the Starlight Casting System, which he soon signed a record contract with SM Entertainment that same year. Park made an extremely brief cameo appearance in the MBC Korean drama All About Eve in 2000 and was also a brief model for Pepsi. He was then recruited into a five-member boy band along with future bandmate Donghae by his talent agency before this idea was dropped. Some of the names for this group were OK, Pricor and Smile.

Kim Heechul (born July 10, 1983), also credited as Heechul, is an actor, singer, dancer, MC, DJ, television host, and the second oldest member of Korean boy band Super Junior. He is known as Cinderella (신데렐라) by his fans and they often refer to him as "Heenim" (희님). Likewise, Heechul calls his fans "Petals" (꽃잎). Kim was born in Gangwon-do, South Korea to a low middle-class family. He has one older sister, Kim Heejin.
He joined under the management of SM Entertainment after he auditioned in the Starlight Casting System in 2002 when he was in Seoul. Along with Hero Jaejoong, U-know Yunho, and future bandmate Kang-in, their talent agency placed them in a small project music group called Four Seasons, with each of the four members representing the four seasons of the year. The prospective group never saw the light when the two members, Hero Jaejoong and U-know Yunho, were chosen to join another all-male singing group TVXQ, which debuted in December of 2003.

Han Geng (born February 9, 1984), better known in Korea as Hankyung, is a singer, dancer, occasional actor, member of the Korean boy band Super Junior, and leader of the Super Junior sub-unit, Super Junior-M. He is the only Chinese member of Super Junior and is the first foreign artist to break into the Korean music industry. He is one of the two members in the group who frequenly performs Chinese martial arts in Super Junior's dance routines, the other being Sungmin. He is also known for his dancing skills, particularly skillful in Chinese traditional dances from 56 minority Chinese ethnic groups. He is seen as one of the four lead dancers of Super Junior and an important figure to further continue the Korean wave in China. Han is also a torch bearer for the 2008 Beijing Olympics, being the first boy band member to be chosen in history.
Han, an ethnic Nanai from Northeast China, was born in Mudanjiang, Heilongjiang, China. At the age of thirteen he joined Beijing Dance Academy to perfect his craft in the dance industry.
When he was preparing his entrance to the Central University for Nationalities at the age of seventeen, he was discovered in December 2001 at the H.O.T. CHINA Audition Casting that was held in Beijing, China, where the competition rate was 3000 to 1. He signed a contract with SM Entertainment the year after, but it was not until early 2003 when he arrived to South Korea to receive private lessons in singing, dancing, and acting. A year later he was put in lessons with the rest of the trainees in SM Entertainment.
On February 6, 2005, SM Entertainment officially announced Han as one of the twelve members of Super Junior 05, the first generation of the large all-male supposed rotational group, Super Junior. Han was the first Chinese and the first foreigner to debut in South Korea, thus creating close media attention. Three months later after the announcement, Han made his first media appearance as a runway model, in a Fashion Show F/W general idea by Bum Suk.

Kim Jongwoon (born August 24, 1984), better known by his stage name Yesung, is a singer, former DJ, dancer, occasional actor, and a member of Korean boy band Super Junior.
In 1999, Kim made his first television appearance in a local music event. Two years later in 2001, Kim auditioned in the Starlight Casting System and scraped through the contests with his "artistic voice". He was then recruited as a trainee under the talent agency SM
Since September of 2006, Yesung had been a DJ for his own radio show, M.I.R.A.C.L.E for You, where members of Super Junior often appear as guests. However, before the radio show's first anniversary, Yesung had to end the program so he can further concentrate on his singing career. The last air date for the radio show was September 8, 2007.

Kim Youngwoon (born January 17, 1985), better known by his stage name Kang-in, is a singer, entertainer, and a member of Korean boy band Super Junior. He was one of the three MC's for M.NET's M!Countdown along with bandmates Leeteuk and Shindong before he was replaced by Eunhyuk. He was also a former DJ for Reckless Radio where Super Junior members often visited as guests, but is now replaced by bandmate Sungmin. He is currently a DJ for MBC's Good Friend Radio with Taeyeon of Girls' Generation.

Shin Donghee (born September 28, 1985), better known by his stage name Shindong, is a singer, entertainer, and a member of Korean boy band Super Junior. In the past Shindong has been criticized for his large size, which contradicts many slim Korean idols. Despite his larger appearance, Shindong is known to be one of the four lead dancers and the group's dance choreographer, creating dances for the bandmates whenever they make dance performances. Shindong is also the rapper of the group and co-writes rap lyrics with the rest of his bandmates. He is also Super Junior's main visual gag performer.

Lee Sungmin (born January 1, 1986), more commonly credited as Sungmin, is a singer, dancer, actor, DJ, and a member of Korean boy band Super Junior. He is a regular DJ of Reckless Radio and is one of the two members in Super Junior who performs Chinese martial arts, the other being Han Geng. He currently attends Seoul Institute of the Arts, majoring in Broadcasting and Television Entertainment.
Sungmin became a trainee under SM Entertainment after he won first place at the 1st SM Youth Best Selection Best Outward Appearance in 2001. Lee was then placed in a project R&B group with Xiah Junsu and future bandmate Eunhyuk in 2002. Along with Typhoon, Rose, and Attack, the six of them made a brief appearance in a show called Heejun vs. Kangta Battle of the Century Pop vs. Rock where Heejun and Kangta taught them techniques on singing. However in 2003, the trio disbanded because Xiah Junsu debuted as a member of TVXQ. On the other hand, Typhoon, Rose, and Attack debuted as members of TRAX.

Lee Hyukjae (born April 4, 1986), better known by his stage name Eunhyuk, is a singer-songwriter, entertainer, and a member of Korean boy band Super Junior. He used a stage name due to a conflict with another celebrity, Lee Hyukjae, a famous comedian who shares the same name. He is talented in areas of both rap and dance, as he is often seen performing solo dances in the group's live performances and music videos. His position in Super Junior is the lead rapper, combining bubblegum pop lyrics with his quick and unique voice tone. He is seen as one of the four lead dancers of Super Junior. He is also a drama and film major.

Lee Donghae (born October 15, 1986), more commonly credited as Donghae, is a singer, dancer, occasional actor, and a member of Korean boy band Super Junior. He is seen as one of the four lead dancers of Super Junior. He currently attends Myongji University.
Lee Donghae was born in Mokpo, Jeollanam-do, South Korea, the youngest of two sons. Under the support of his father, who had a wish to become a singer, Donghae successful signed a contract with SM Entertainment soon after he won first place on the 3rd SM Youth Best Selection Best Outward Appearance in 2001. He was then recruited into a five-member boy band, O-Kay, along with future bandmate Leeteuk by his talent agency before this idea was dropped.

Choi Siwon (born February 10, 1987), also credited as Siwon, is an actor, singer, dancer and a member of Korean boy band Super Junior. Choi's breakthrough performance was in the 2006 Hong Kong historical action drama film, A Battle of Wits, where he plays the young prince, Liang Shi.
Choi was raised in a strict, Protestant family from Seoul, South Korea who owns one of Korea's biggest supermarket chains. After Choi's talents were scouted in the Starlight Casting System in 2003, his parents initially disapproved him to pursue in an entertainment career. After consideration, his parents allowed Choi to sign under the talent agency SM Entertainment. Choi said that although his father agreed Choi to sign the contract, he would not give any help to his son. Choi later moved into dormitories with fellow trainees and he was trained in areas of singing, acting, and dancing. He made his first appearance in a music video of The Grace's Dana when she was still a solo singer in 2003. A year after, Choi made a brief appearance in the short drama, Precious Family.

Kim Ryeowook (born June 21, 1987), more commonly credited as Ryeowook, is a Korean singer, dancer, occasional actor, and the third youngest member of Super Junior. He is recognized by his fellow members as the "eternal magnae" (eternal youngest) of the group, as well as one of the three most vocally powerful in the group (Super Junior-K.R.Y.). Even before Kyuhyun's addition to the group in May 2006, Ryeowook commonly called himself the youngest despite being a few months older than Kibum. Ryeowook is currently studying at Inha University.
Kim Ryeowook was discovered through the CMB Youth ChinChin Festival in 2004 and signed a contract with SM Entertainment soon afterwards after impressing judges with his singing talent. Trained in areas of singing, dancing, and acting, Ryeowook placed particular efforts into his vocal training and music composition as he was most concerned in those areas.

Kim Kibum (born August 21, 1987), also credited as Kibum, is a Korean actor, singer, dancer, and the second youngest member of Super Junior. He made his debut in the Korean television drama, April Kiss in 2004. Although debuted as an actor, he achieved higher results as a singer after his music debut with Super Junior in 2005.
Kim was born in Seoul, South Korea. He has a younger sister, Kim Saehee. He is also the cousin of famous actor and model, Shin Dongwook. At the age of ten, he moved to Los Angeles, California, United States where he attended his high school years at Santa Monica High School.
In 2002, he was discovered by a talent agent from South Korea and was recommended to audition for the Starlight Casting System, a casting system organized by South Korea's largest entertainment company and label SM Entertainment, and also the home of top Korean pop acts like BoA and TVXQ. Kim soon signed a contract with SM Entertainment and became their official trainee, being trained in areas of singing, acting, dancing, and other performing talents such as hosting and modeling. He placed particularly strong efforts in acting, as he explained that he is most interested in that area. Although he resided in Seoul at the time, he constantly returned to Los Angeles to visit his family and to attend short school sessions.

Cho Kyuhyun (born February 3, 1988), more commonly credited as Kyuhyun, is a Korean singer, dancer, and the youngest member of Super Junior. He is currently a Modern Music major at Kyunghee University.
Cho Kyuhyun's singing talents were discovered after he won third place at the Chin Chin Singing Competition in 2005. He soon signed under SM Entertainment and was featured in the video remake of TVXQ's single "Hi Ya Ya" along with other Chin Chin idols.
Before Kyuhyun's addition to Super Junior, the original twelve members were said to be separating and "graduating" as the band was still presented as a project group at the time, the concept being very similar to Japan's popular girl group, Morning Musume. Although Kyuhyun's addition to the group initially brought in an unpleasant surprise and disatisfaction within the group's fans who supported the original twelve members, his addition ended Super Junior's life as a project group and began its life as a permanent group.[1][2] Kyuhyun was quickly accepted and acknowledged by the fans as the thirteenth member of Super Junior.