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CHECKMATE Members Profile

CHECKMATE Members Profile: CHECKMATE Facts

CHECKMATE (체크메이트) is a co-ed group under GRACE COMPANY Entertainment. They currently consist of 4 members: Sieun, Suri, Yongseok and Noah. They debuted on September 21st, 2020 with “DRUM”.

CHECKMATE Fandom Name:
CHECKMATE Official Fan Color:

CHECKMATE Official Accounts:
Instagram: checkmate_official__
Twitter: @GraceCompany_ (Company’s Official Twitter) / @checkmate_tweet (Members’ Twitter)
TikTok: @checkmate_official
Facebook: Checkmate체크메이트
Fancafe: CHECKMATEofficial

CHECKMATE Members Profile:

Stage Name: Sieun (시은)
Birth Name: Maeng Sieun (맹시은), later legalized as Lee Si Eun (이시은)
Position: Leader, Main Vocalist
Birthday: September 19, 1993
Zodiac Sign: Virgo
Chinese Zodiac Sign: Rooster
Height: 163 cm (5’3”)
Blood Type: B
Instagram: @fallin__see

Sieun Facts:
– She is a former member of RAMISU.
– She is a former pre-debut contender for Rendezvous.
– Her shoe size is 220-225 mm.
– Her hobby is listening to music.
– Her role model is Taeyeon from SNSD.
– She relieves stress by sleeping in a bed.
– Her favorite season is spring and the least favorite is winter.
– Her favorite movie genre is thriller.
– She wants to visit Okinawa, Japan.
– Her favorite fruit are apples.
– Her favorite color is pink.
– Her favorite animal is a Munchkin cat.
– She does not like to eat mushrooms.


Stage Name: Suri (수리)
Birth Name: Kang Su Ri (강수리)
Position: Main Rapper, Main Dancer, Vocalist
Birthday: October 11, 1994
Zodiac Sign: Libra
Chinese Zodiac Sign: Dog
Height: 168 cm (5’6″)
Weight: 49 kg (108 lbs)
Blood Type: B
Instagram: @suri__kang

Suri Facts:
– She was born in Daejeon, South Korea.
– She is a former member of the pre-debut disbanded girl group Rendezvous.
– She is a also former member of AMOR.
– She can do taekwondo.
– Her role model is Ariana Grande.
– She is a “boy group dance master”.
– She practiced ballet for a short time.
– Her favorite animals are dogs and cats.
– She likes to listen to Tinashe.
– She said she has bad eyesight and needs glasses.
– She raises cats at her house.
– Self-proclaimed energy girl.
– She’s good at sports, especially taekwondo and boxing. (Rendezvous interview)
– She always has a stuffed toy called Metamong in her bed. (Rendezvous interview)
– Her hobby is going to coffee shops. (Rendezvous interview)
– Her favourite music genre is hip hop. (Rendezvous interview)
– Her favourite film is “Titanic”. (Rendezvous interview)


Stage Name: Yongseok (용석)
Birth Name: Choi Yong Seok (최용석)
Position: Main Vocalist, Visual
Birthday: May 23, 1996
Zodiac Sign: Gemini
Chinese Zodiac Sign: Rat
Blood Type:

Yongseok Facts:
– He is the member that talks the most in videos.
– Yongseok said he’s the ‘sexy charisma’ of Checkmate. (‘You’ Media Showcase)
– Members call him a dragon stone.
– He said that BTS inspired him to become an idol.
– He said he never wants his fans to regret falling for Checkmate.
– His hobby is providing manual therapy to the members (he learnt some techniques from his friend who does manual therapy). (‘You’ Media Showcase)


Stage Name: Noah (노아)
Birth Name: Hwang Seung Dae (황승대)
Position: Lead Vocalist, Maknae
Birthday: March 18, 1998
Zodiac Sign: Pisces
Chinese Zodiac Sign: Tiger
Blood Type:

Noah Facts:
– When asked which character he was like he said Harry Potter.
– His favorite season is fall because it is good for exercising and walking and other things.
– Yongseok said that when Noah feels good/comfortable he slides down into the chair that he is sitting in.
– Suri bought friendship rings for all of the members, but Noah lost his ring. (‘You’ Media Showcase)

Former Members:

Stage Name: Nason (네이슨)
Birth Name: Kim Du Yeop (김두엽)
Position: Lead Dancer, Vocalist
Birthday: June 12, 1995
Zodiac Sign: Gemini
Chinese Zodiac Sign: Pig
Blood Type:
Blood Type: @nason.official

Nason Facts:
– He likes being in the center of the group.
– Although he looks mature he has a boyish charm.
– From all the members he is the best at playing chess.
– He said that being in a mixed-gender group can create this new unique charm and vibe.
– As of November 2020, Nason is believed to have left the group as all references and photos to him have been erased from various media platforms.


Stage Name: Haechang (해창)
Birth Name:
Position: Vocalist, Rapper, Maknae (?)
Zodiac Sign:
Blood Type:

Haechang Facts:
– On November 4, 2020, Haechang was announced as a new member on the agency’s Instagram during a live stream.
– In December 2020 it has been announced that Haechang will stop his activities with CHECKMATE due to personal reasons.

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Made by: jenctzen

(Special thanks to SunJung, Cali Hanna, Jamphii, Mister L, songhaena, Forever_kpop___, itboydoyum, Andy Dugger, hisa雌犬, Jamphii, Maria McBurrito, bravegirls)

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