Trainee A Members Profile and Facts:
Trainee A was a pre-debut boy group formed in early 2021, speculated to be under Big Hit Music. The trainee lineup consisted 6 members: Yorch, Sangwon, Woochan, James, JJ, and Jihoon. They were set to debut in 2022, but the boy group was cancelled on December 23, 2022.
Inactive Trainee A Official SNS:
X: @trainee_a
Instagram: @_trainee_a
SoundCloud: trainee-a
TikTok: @trainee_a
YouTube: Trainee A
Trainee A Member Profiles:
Yorch
Stage Name: Yorch (요치)
Birth Name: Yongsin Wongpanitnont (ยอร์ช ยงศิลป์ วงศ์พนิตนนท์)
Position: N/A
Birthday: April 11th, 2002
Zodiac Sign: Aries
Height: 173 cm (5’8″)
Weight: N/A
Blood Type: N/A
MBTI Type: INTP/INFP
Nationality: Thai
Representative Emoji: 🦋
Instagram: @yorch_yongsin
Yorch Facts:
– Years active (as Trainee A): 2022
– He was born in Phayao, Thailand.
– Education: Srinakharinwirot University.
– He was revealed as a new member on January 20, 2022.
– Yorch also worked as an actor an model in Thailand.
– His favorite food is Durian.
– His hobbies are dancing and playing football.
– He started acting when he was 10 years old.
– Yorch is currently signed under GRID Entertainment.
– He debuted as a member of the boy group POW on October 11, 2023.
Show more Yorch fun facts…
Sangwon
Stage Name: Sangwon (상원)
Birth Name: Lee Sang-won (이상원)
Position: N/A
Birthday: May 8th, 2003
Zodiac Sign: Taurus
Height: 177 cm (5’10”)
Weight: N/A
Blood Type: N/A
MBTI Type: INFP
Nationality: Korean
Representative Emoji: 🥀
Sangwon Facts:
– Years active (as Trainee A): 2021–2022
– He’s from Seoul, South Korea.
– He likes winter.
– Sangwon seems to be very good at speaking English.
– Training Period: 5 Years (2016).
– Education: Hanlim Multi Art School (Graduated).
– In Feb. 2022, Sangwon graduated in Hanlim Multi Art School.
– He loves French fries.
– Sangwon can choreograph dances.
– He takes floral images as a hobby.
– Sangwon loves fashion/clothes.
– He went on a trip to Brunei with Jay and Heeseung from ENHYPEN. The trip was back in August of 2019 when all of them were Bighit trainees at that time.
– In 2023 he signed with Bill Entertainment.
– On May 24, 2025, it was announced that he had signed GRID Entertainment, alongside Leo.
– He is also currently a member of the duo LEO & SANGWON.
– In 2025 he was a contestant on MNET’s survival show BOYS II PLANET.
– He ranked 1st in BOYS II PLANET (accumulating 7,293,777 votes in the finale) and got to debut as a member of ALPHA DRIVE ONE.
Show more Sangwon fun facts…
Woochan
Stage Name: Woochan (우찬)
Birth Name: Jo Woo-chan ( 조우찬)
Position: N/A
Birthday: January 20th, 2005
Zodiac Sign: Aquarius
Height: 177 cm (5’9″)
Weight: N/A
Blood Type: A
MBTI Type: N/A
Nationality: Korean
Representative Emoji: 🐶
Woochan Facts:
– Years active (as Trainee A): 2022
– He was born in Seoul, South Korea.
– He was revealed as a new member on January 8, 2022.
– Woochan is a former contestant on Show Me the Money 6.
–He debuted as a solo artist in July, 2019.
– He is now a member of ALLDAY PROJECT under THEBLACKLABEL.
Show more Woochan fun facts…
James
Stage Name: James ( 제임스)
Birth Name: Zhao Yufan (赵雨凡)
Chinese Name: Zhao Yu Fan (赵雨凡)
Position: N/A
Birthday: October 14th, 2005
Zodiac Sign: Libra
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: ISTJ
Nationality: Thai-Chinese
Representative Emoji: 😝
James Facts:
– Years active (as Trainee A): 2021–2022
– He is from Hong Kong, and lived there before moving to South Korea.
– James specializes in dancing.
– He can speak Chinese, Thai, Korean and English fluently whilst also speaking a little bit of Japanese because of JJ (JAMESLOG).
– James’ hockey training took place at the Hong Kong Typhoons & Selects, an international royal organization that supports young ice hockey players.
– James visited Minnesota with another trainee friend called Yasinura to train in a dance studio.
– Along with being an ice hockey player, he was a Taekwondo athlete.
– On August 18, 2025 James has debuted as a member of CORTIS, under BIGHIT MUSIC.
Show more James fun facts…
JJ
Stage Name: JJ (제이제이)
Birth Name: Takagi Justin Jay
Position: N/A
Birthday: January 27th, 2006
Zodiac Sign: Aquarius
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: ESFP
Nationality: Japanese-American
Representative Emoji: 🐻
JJ Facts:
– Years active (as Trainee A): 2021–2022
– He is from Hyōgo Prefecture, Japan.
– JJ is Half Japanese and Half American.
– Family: Parents and a younger brother.
– JJ came to Korea and became a Bighit trainee in June 2021.
– He was revealed as a new member on August 22, 2021.
– He can play a guitar.
– He’s a model, dancer and so good in freestyles.
– JJ loves dancing, especially break-dancing.
– He is a former member of Amezari Red Star which debuted on August 25, 2015 in Japan.
– He has participated in many dance competitions around the world with his dance team.
– JJ has become a trainee under SM Entertainment and a pre-debut member of SMTR25.
Show more JJ fun facts…
Jihoon
Stage Name: Jihoon (지훈)
Birth Name: Han Ji-hoon (한지훈)
Position: Maknae
Birthday: March 28th, 2006
Zodiac Sign: Aries
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: INFP
Nationality: Korean
Representative Emoji: 🐣
Jihoon Facts:
– Years active (as Trainee A): 2021–2022
– He plays guitar.
– Jihoon has a bad habit of misplacing his bucket hats.
– He attended Move Dance Studio in Seoul, South Korea at some point before becoming a Big Hit trainee.
– He won 2nd place in WINNER‘s “REALLY REALLY” Dance Cover Contest.
– Training Period: 1 Year (2020).
– He prefers winter over summer.
– He used to attend others dance studios such as Feedbackdance studio, Prepix dance studio, Danceinside studio, OFD studio, Urban Play Dance academy and Souldance.
– Yoon Jinwoo was his dance instructor. He also took part in Yoon Jinwoo’s demo choreography for Stray Kids Easy.
– Jihoon prefers sleeping over traveling.
– He prefers walking over riding traffic transport.
– He prefers call over text.
– Jihoon prefers clothes over shoes.
– He prefers romance over horror.
– In the most recent youtube video on Trainee A youtube channel, JJ said that Jihoon is the maknae.
– Jihoon debuted as a member of the boy group TWS under PLEDIS Entertainment on January 22, 2024.
Show more Jihoon facts…
Former Member:
LEO
Stage Name: LEO (리오)
Birth Name: Leo Lee (이리오)
Birthday: August 22nd, 2002
Zodiac Sign: Leo
Height: 181 cm (5’11”)
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean-Australian
Representative Emoji: 🦁*
Website: LEO
Instagram: @jadedstilll
X: @LEO_131official
YouTube: LEO
TikTok: @leo131official
LEO Facts:
– Years active (as Trainee A): 2021–2022
– He is from Sydney, Australia.
– He came to Korea on his own at 17 years old to train as a singer.
– LEO was the first trainee introduced and was a trainee for three years and a half.
– He is close friends with 0WAVE‘s member VIIN.
– LEO dislikes mint chocolate.
– On August 25, 2022 it was announced that LEO left Trainee A due to mental health struggles.
– On July 24, 2023 it was revealed that he’s under 131 LABEL.
– He made his solo debut on August 17, 2023 with the single ‘One Look’.
– On May 24, 2025, it was announced that he had joined GRID Entertainment, alongside SANGWON.
– He is also currently a member of the duo LEO & SANGWON.
– In 2025, he participated on MNET‘s survival show BOYS II PLANET (ranked 6th) and got a place in the debuting lineup.
– He is currently a member of the project boy group ALPHA DRIVE ONE.
Show more LEO facts…
Park Junil
Stage Name: Park Junil (박준일)
Birth Name: Park Jun-il (박준일)
Birthday: April 5, 2004
Zodiac Sign: Aries
Chinese Zodiac Sign: Monkey
Height: 171 cm (5’7″)
Weight: N/A
Blood Type: N/A
MBTI Type: ISTJ
Nationality: Korean
Park Junil Facts:
– Years active (as Trainee A): 2021
– Education: Hanlim Multi Art School
– He attends IB Music Academy.
– He can speak Japanese.
– He was classmates with NJZ‘s Minji, fellow contestant HANEUM, TIOT‘s Kum Junhyeon, NMIXX‘s Sullyoon and Bae in high school.
– His hobbies are talking walks, going window shopping and exploring dessert restaurants.
– His specialties are freestyle dance, practicing taekwondo, and performing acrobatics.
– Junil’s role model is Chris Brown.
– He previously trained at JYP Entertainment (2021-2023).
– He was a contestant on the survival show Boys II Planet (2025), where he ranked 21st.
– Junil trained for 4 years and 11 months prior to his appearance on Boys II Planet.
– He is a member of iNKODE‘s trainee team iNKODE Trainee (2023-present).
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Note 2: Source for the MBTI Types: [A-LOG] MBTI.
For Reference On MBTI Types:
E = Extroverted, I = Introverted
N = Intuitive, S = Observant
T = Thinking, F = Feeling
P = Perceiving, J = Judging
Made by: Country Ball
(Special thanks to: @leotrainee_A (Twitter), ST1CKYQUI3TT, gloomyjoon, Hey Yo hitman Bang Entroduces, chicks0up, Nisa, DEZA, Sanrio, maxy, wonyoung, yan, sunoo, veerol, Woniel Leo 🥰, sunoo18, yena12, kimrowstan, dazeddenise, jamiegonza, @velvethear_t (Twitter), Chanyeol Yoongi, Amadesu, zyn, sunniejunnie, SEON, Elle, BaekByeolBaekGyeol, soobin, Jisung’s_flower, Sierra Pierce, Thriftskull0, elle.c, Uotessïa, Hoe Wei Min)
Who is your Trainee A bias? Do you know more facts about them? Feel free to comment below.
