Seon Woo-hyeol is the central figure of Heartbeat, a half-human, half-vampire who has lived for roughly a century while nursing one consuming wish: to shed his supernatural nature and become an ordinary human. Elegant, theatrical, and a little old-fashioned, he carries himself with the romantic flourish of a bygone era, which often clashes comically with the modern world around him.
His carefully laid plan to complete a hundred-day ritual is derailed at the last moment, leaving him only partially human and still tethered to a vampire's thirst. Stranded in his decaying ancestral mansion, he is forced into uneasy cohabitation with the blunt, practical Joo In-hae, whose refusal to vacate the house upends his solitary existence.
Across the season Woo-hyeol's arc moves from self-absorbed longing toward genuine connection. As he bickers, bargains, and gradually softens toward In-hae and the loyal companions who share his home, he is forced to reconsider what humanity actually means, discovering that warmth and belonging may matter more than the transformation he chased for so long.
Seon Woo-hyeol is one of the central figures in Heartbeat, a romance/comedy/fantasy/korean/supernatural series that aired on KBS2 from 2023. Within the narrative of Heartbeat, Seon Woo-hyeol serves as a pivotal character whose decisions and relationships drive key story arcs throughout Season 1 (2023). The character's journey has been central to many of the show's most memorable and discussed moments.
Portrayed by Ok Taec-yeon, Seon Woo-hyeol has become one of the most recognizable characters in modern television. Ok Taec-yeon's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. Ok Taec-yeon's work has been recognized with 1 major award, reflecting the critical acclaim their portrayal has received.
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? Frequently Asked Questions
Seon Woo-hyeol is played by Ok Taec-yeon, the actor and singer also known as a member of the group 2PM.
He is half-human and half-vampire. His goal in the series is to complete a ritual that would make him fully human, but the plan is disrupted, leaving him stuck between both natures.
