Seol Kang-woo is a small-time gang member who is pulled into the parasite crisis while searching for his missing sister. Streetwise, quick-talking, and initially out for himself, he becomes entangled with Jeong Su-in after a chaotic encounter, and the two wary strangers end up depending on each other as they navigate a world where anyone around them could secretly be a parasite host.
His arc is one of reluctant loyalty. Driven at first by personal motives, Kang-woo gradually shifts toward protecting Su-in and confronting the parasites directly, providing both the show's grounded human energy and moments of dark humor amid the tension. His outsider status mirrors Su-in's own isolation, and their growing partnership forms a second core relationship alongside Su-in's bond with the creature inside her.
Koo Kyo-hwan plays Kang-woo with a restless, lived-in physicality, and the character serves as a bridge between the ordinary criminal underworld and the larger battle between humans and parasites. By the finale, his choices help define the stakes the series carries into its planned continuation.
Seol Kang-woo is one of the central figures in Parasyte: The Grey, a science-fiction/thriller/horror/action/korean/creature-feature series that aired on Netflix from 2024. Within the narrative of Parasyte: The Grey, Seol Kang-woo serves as a pivotal character whose decisions and relationships drive key story arcs throughout Season 1 (2024). The character's journey has been central to many of the show's most memorable and discussed moments.
Portrayed by Koo Kyo-hwan, Seol Kang-woo has become one of the most recognizable characters in modern television. Koo Kyo-hwan's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. Koo Kyo-hwan's work has been recognized with 1 major award, reflecting the critical acclaim their portrayal has received.
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? Frequently Asked Questions
Seol Kang-woo is a small-time gangster searching for his missing sister who becomes caught up in the parasite outbreak. He crosses paths with Jeong Su-in, and the two outsiders form an uneasy alliance, with Kang-woo providing much of the show's grounded human perspective and reluctant heroism.
Seol Kang-woo is played by South Korean actor Koo Kyo-hwan, widely known for the Netflix series D.P. His energetic, physical performance gives the character a streetwise charm and brings levity and humanity to the survival-thriller story.
