Mark in 2015.
Mark (Korean: 마크) was born Mark Yi-en Tuan (Chinese: 段宜恩) on September 4, 1993 (age 23) in Los Angeles, United States. He is the oldest member of the group and is of Taiwanese descent. In 2010, after getting cast by JYP Entertainment in the U.S., Mark moved to Korea for training. His first pre-debut appearance was on an episode of Mnet's reality-survival program WIN: Who Is Next, which aired on September 6, 2013. Mark, alongside Jackson, BamBam and Yugyeom, competed against trainees from YG Entertainment.
JB in 2015.
JB (Korean: 제이비) was born Im Jae-bum (Korean: 임재범) on January 6, 1994 (age 23) and is the leader of the group. He passed JYP Entertainment's local auditions in 2009 and debuted together with Jinyoung as the duo JJ Project in 2012. They both made their small-screen debut through the drama series Dream High 2. He also appeared in MBC's drama When a Man Falls in Love.
Jackson in 2015.
Jackson (Korean: 잭슨) was born Jackson Wang Ka-yee (Chinese: 王嘉爾,王嘉尔) on March 28, 1994 (age 23) in Hong Kong. He is a former representative of Hong Kong's national fencing team, earning two gold medals at the Asian Junior Olympics in Thailand in 2011. He claimed that earning a gold medal was one of his parents' requirements for allowing him to train in Korea. His father became a gold medalist in fencing in 1986, while his mother was a Chinese national gymnastics member. His first pre-debut appearance was in an episode of Mnet's reality-survival program WIN: Who Is Next with Mark, BamBam, and Yugyeom. Shortly after debut, Jackson became a variety star in South Korea due to his appearance on the SBS reality series Roommate, for which he was awarded the Newcomer Award at the 2014 SBS Entertainment Awards. From May to August 2015, Jackson was a regular MC for SBS's music show Inkigayo. In December 2015, Jackson made his Chinese television debut as one of the presenters of the talk show Go Fridge, and was well received. In December 2016 he appeared in his first solo commercial for Midea fridge in China.
Jinyoung on 19 May 2016.
Jinyoung (Korean: 진영) was born Park Jin-young (Korean: 박진영) on September 22, 1994 (age 22). He passed JYP Entertainment's local auditions in 2009 and made his acting debut in 2011, playing the role of Jung Ui-bong in the television drama Dream High 2 in 2011. In 2012, Jinyoung debuted as a member of JJ Project with JB. The duo also made appearances on the MBC television drama When a Man Falls in Love in 2013. Jinyoung is the most prominent actor in the group, having played roles in Beloved Eun-dong and The Legend of the Blue Sea. In 2016, he made his big screen debut in the movie A Stray Goat.Jinyoung and BamBam were made permanent hosts for Mnet's M! Countdown alongside Key of SHINee from March 2015 to March 2016. Jinyoung originally debuted with the stage name Jr., since he shares the same name as JYP Entertainment's founder and CEO. On May 5, 2015, he changed his stage name to Junior due to the confusion of fans and media about the correct pronunciation of Jr. On August 16, 2016, he changed it again to his given name, Jinyoung. On February 1, 2017, SBS announced that he had been chosen, with NCT's Doyoung and Black Pink's Jisoo, as the new fixed MCs of SBS Inkigayo.
Youngjae, on October 7, 2016.
Youngjae (Korean: 영재) was born Choi Young-jae (Korean: 최영재) on September 17, 1996 (age 20). In 2013, he became a trainee under JYP Entertainment after passing an audition at his music school in Mokpo. Youngjae cited Elliot Yamin, Sanjoy, and Javier Colon as three of his musical influences, auditioning with Elliott's songs. He was a trainee for just seven months and was the last member added to the group.
Bambam in 2015.
BamBam (Korean: 뱀뱀; Thai: แบมแบม) was born Kunpimook Bhuwakul (Thai: กันต์พิมุกต์ ภูวกุล) on May 2, 1997 (age 20) in Bangkok, Thailand. BamBam started training in Korea at a very young age and, as a child, he was part of the dance crew "We Zaa Cool" alongside Blackpink's Lisa. He made his first TV appearance in an episode of Mnet's reality-survival program WIN: Who Is Next alongside Jackson, Mark and Yugyeom. In 2016, BamBam and Jackson appeared on the South Korean variety show Real Men for a special season with the theme of "Enlisting Together". BamBam and Jinyoung were made permanent hosts for Mnet's M! Countdown alongside Key of SHINee from March 2015 to March 2016.
Yugyeom on 27 October 2016.
Yugyeom (Korean: 유겸) was born Kim Yu-gyeom (Korean: 김유겸) on November 17, 1997 (age 19). He is the youngest member of the group, and is known for his street dancing. Yugyeom enrolled in dance school in seventh grade, which led him to the opportunity to audition for JYP. He made his first pre-debut appearance in an episode of Mnet's reality-survival program WIN: Who Is Next alongside Jackson, Mark and BamBam, which aired on September 6, 2013. In 2016, Yugyeom joined Mnet's dance survival contest Hit the Stage and was placed first in the final episode.