Lost – Cast & Summary

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Lost - Cast, Summary, Synopsis, OST, Episode, Review

A Korean Drama, Lost, has a release time starting from September 4 until October 31, 2021, on JTBC Network.

This drama is starred by Jeon Do Yeon, Ryu Jun Yeol, Park Byung Eun, and also Kim Hyo Jin as the main characters.

Previously, Jeon Do Yeon had starred in The Good Wife (2016), meanwhile, Ryu Jun Yeol had starred in Reply 1988 (2015) and Lucky Romance (2016).

Park Byung Eun had become the main actor for Your Honor in 2018 and also Oh My Baby in 2020 before.

The other character, Kim Hyo Jin, also had starred in Private Lives (2020).

Lost is aired every Saturday and Sunday on JTBC Network at 22:30 KST to replace the previous drama, Nevertheless.

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Lost - Cast, Summary, Synopsis, OST, Episode, Review


  • Title: Lost / Ingansilgyeok / 인간실격
  • Also Known As: No Longer Human / Human Disqualification
  • Genre: Melodrama
  • Country: South Korea
  • Director: Hur Jin Ho
  • Producer: Baek Chang Joo, Park Jun Seo, Jo Jun Hyeong
  • Screenwriter: Kim Ji Hye
  • Production Companies: Drama House, C-JeS Entertainment
  • Network: JTBC
  • Episodes: 16
  • Air Dates: September 4, 2021 – October 31, 2021
  • Air Time: Saturday and Sunday, 22:30 KST

Synopsis of Lost

This drama tells a story about a woman in her middle age, around 40 years old and a young man who is 27 years old.

This woman lives her daily life as a ghostwriter. Even so, she feels like she is lost and doesn’t know what to do with her life.

She thinks that she hasn’t achieved something significant in her own life.

On the other side, this young man faces a similar problem. He is scared to be a nobody in the future life.

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Main Cast

Lost - Cast, Summary, Synopsis, OST, Episode, Review

Jeon Do Yeon as Lee Bu Jung

A desperate middle-aged woman who works her daily life as a ghostwriter. She has a grand desire to release a work with her own name.

Bu Jung feels like she has given everything in her life to get the best result, but she faces big failure that makes her lost.

Lost - Cast, Summary, Synopsis, OST, Episode, Review

Ryu Jun Yeol as Kang Jae

Kang Jae always has a nightmare about being nobody. He comes from a poor family and wants to achieve a rich life.

Park Byung Eun

Park Byung Eun as Jung Soo

Bu Jung’s husband. In his daily life, he works as a team leader in a department store.

Kim Hyo Jin

Kim Hyo Jin as Kyung Eun

The first love of Kang Jae.

Supporting Cast

People around Bu Jung

  • Park In Hwan as Chang Suk
  • Shin Shin Ae as Min Ja
  • Park Ji Young as Ah Ran

People around Kang Jae

  • Yoo Subin as Tak / Sun Joo
  • Son Naeun as Min Jung
  • Jo Eunji as Sun Gyu
  • Yang Dong Geun as Woo Nam
  • Kang Ji Eun as Mi Sun
  • Lee Seo Hwan as Jang Gyu
  • Ryu Ji Hun as Jong Hun
  • Na Hyun Woo as Jung Woo


  • Oh Kwang Rok as Jin Seop, an actor
  • Lee Se Na as Ji Na, Jin Seop’s lover
  • Kang Hyung Suk as Jun Hyuk

OST (Original Soundtrack)

  • Dalma – ColdoK
  • Hold Me – Elaine
  • 꿈을 꾸고 있어 (Dreaming) – YOARI
  • 아무것도 못해 (Without You) – Cheon Dal Bi

Trailer of Lost