Parasyte: The Grey (TV) Cast
The cast of Parasyte: The Grey. Updated on July 14, 2025.
17 actors
Jeon So-nee
as Jeong Su-in (6 episodes)

Jeon So-nee plays Jeong Su-in, a central character in the struggle against parasitic creatures.

Koo Kyo-hwan
as Seol Kang-woo (6 episodes)

Koo Kyo-hwan plays Seol Kang-woo, contributing to the series' core narrative.

Lee Jung-hyun
as Choi Jun-kyung (6 episodes)

Lee Jung-hyun takes on the role of Choi Jun-kyung, a key figure in the series.

Kwon Hae-hyo
as Kim Chul-min (6 episodes)

Kwon Hae-hyo portrays Kim Chul-min in the series.

Kim In-kwon
as Kang Won-seok (6 episodes)

Kim In-kwon appears as Kang Won-seok.

Jeon Hui-jeong
as The Grey Agent (6 episodes)

Jeon Hui-jeong is known as The Grey Agent.

Yoon Hyun-gil
as Seol Kyeong-hee (6 episodes)

Yoon Hyun-gil plays Seol Kyeong-hee.

Tom Choi
as Chul-Min (6 episodes)

Tom Choi plays a character named Chul-Min.

Lee Hyun-kyun
as Kwon Hyeok-joo (6 episodes)

Lee Hyun-kyun plays Kwon Hyeok-joo.

Moon Jung-dae
as Chief Kang Seok-kwan (6 episodes)

Moon Jung-dae portrays Chief Kang Seok-kwan.

Seo Myung-chan
as Jin Yong-kwan (6 episodes)

Seo Myung-chan plays Jin Yong-kwan.

Lee Se-ho
as The Grey Agent (6 episodes)

Lee Se-ho is also known as The Grey Agent.

Go Seo-hee
as Kang Won-seok's Wife (1 episode)
Lee Hyo-na
as Parasite (1 episode)
Kim Ye-rin
as EDM Concert Goer (1 episode)
Masaki Suda
as Shinichi Izumi (1 episode)
Joo Suk-je
as Jung Ji-hoon (6 episodes)
For the best insights and data about the TV show Parasyte: The Grey, visit our main Parasyte: The Grey page.