Wi Ha-jun (위하준) is a South Korean actor and model born in Soan-myeon, Wando County. He is managed by MSTeam Entertainment. He is a former student at Sungkyul University in the Faculty of Theater and Film, Theater Major.

Wi Ha-jun plays as Choi Do-il in Squid Game.
Wi Ha-jun is the top #1 member of the cast and appears in 12 episodes.

Lee You-mi is a South Korean actress.

Lee You-mi plays as Lee Na-yeon in Squid Game.
Lee You-mi is the top #2 member of the cast and appears in 12 episodes.

HoYeon Jung is a South Korean fashion model. Vogue has dubbed her as “Korea’s next top model”, and she appeared on the namesake show’s 4th season (where she was placed second). She currently ranks as one of the “Top 50” fashion models by models.com.

Jung Ho-yeon plays as Kang Sae-byeok, "No. 067" in Squid Game.
Jung Ho-yeon is the top #3 member of the cast and appears in 9 episodes.

Oh Yeong-su plays as Oh Il-nam, "No. 001" in Squid Game.
Oh Yeong-su is the top #4 member of the cast and appears in 9 episodes.

Heo Sung-tae plays as Jang Deok-su, "No. 101" in Squid Game.
Heo Sung-tae is the top #5 member of the cast and appears in 9 episodes.

Kim Joo Ryung is a South Korean actress. She was born on September 10, 1976 and made her acting debut in 2000. Since then, she has appeared in numerous films and television dramas, including “The Ghost Detective” (2018), “The Snob” (2019), “When My Love Blooms” (2020), “King Maker: The Change of Destiny” (2020), and “SF8” (2020).

Kim Joo-ryoung plays as Han Mi-nyeo, "No. 212" in Squid Game.
Kim Joo-ryoung is the top #6 member of the cast and appears in 9 episodes.

Anupam Tripathi plays as Ali Abdul, "No. 199" in Squid Game.
Anupam Tripathi is the top #7 member of the cast and appears in 9 episodes.

Park Hae-soo plays as Berlin in Squid Game.
Park Hae-soo is the top #8 member of the cast and appears in 6 episodes.

Lee Jung-jae (이정재) is a South Korean actor. Born on March 15, 1973, he began modeling in 1993 before getting his first acting roles the film The Young Man (1994) and the TV series Feelings (1994) and Sandglass (1995), which is one of the highest rated Korean dramas of all time with a peak rating of 64.5%. But his real breakthrough was with leading roles in award-winning films The Affair (1998) and City of the Rising Sun (1999). The latter of which earned him the Best Actor award at the prestigious Blue Dragon film awards. This was followed by a series of critical hits like Il Mare (2000) and commercial successes including Last Present (2001), The Last Witness (2001), Oh Brothers (2003), and the blockbuster Typhoon (2005). After a brief career slump of flop movies and tv shows, he returned with the critical and commercial hit The Housemaid (2010), which is a remake of the 1960 film of the same name. Since then, he went on to cement himself as one of Korea's biggest movie stars with a string of some of the biggest blockbusters in Korean history including The Thieves (2012), New World (2013), The Face Reader (2013), Assassination (2015), Operation Chromite (2016), and the Along with the Gods films (2017-2018). Most of these films did north of 12 million admissions at the domestic box-office, with The Thieves (2012) and Along with the Gods (2017) becoming the #2 biggest Korean hit in history at their respective time of release. He received a number of awards and nominations for these works including a Popularity Award at the prestigious Grand Bell awards. His most recent blockbuster is Deliver Us From Evil (2020) in which he reunited with his New World (2013) co-star Hwang Jung-min. It crossed 4 million admissions domestically and was the second biggest hit of the year in Korea.

Lee Jung-jae plays as Master Sol in Squid Game.
Lee Jung-jae is the top #9 member of the cast and appears in 2 episodes.