Who plays King Seoljong in The First Night with the Duke?

King Seoljong is played by Ju Seok-tae.

How is King Seoljong connected to other characters?

King Seoljong has 5 mapped relationships in The First Night with the Duke. Explore the interactive relationship map for details.

King Seoljong — Candidate to Ruler — Cha Seon-chaek / K (Seohyun)
Cha Seon-chaek enters the royal bride selection under King Seoljong's authority, navigating court politics.
King Seoljong — Exiled Heir to Monarch — Prince Seonghyeon (Lee Tae-seon)
Prince Seonghyeon's return challenges King Seoljong's authority and triggers significant political shifts.
King Seoljong — Monarch to Exile — Prince Seonghyeon (Lee Tae-seon)
King Seoljong must confront the political threat posed by his exiled brother's return and schemes.
King Seoljong — Political Advisor — Do Hwa-seon (Ji Hye-won)
Do Hwa-seon engages in political maneuvering, influencing royal decisions and court dynamics.
King Seoljong — Father and Son — Prince Kyungsung / Lee Beon (Ok Taec-yeon)
Royal family dynamics and succession pressures strain their bond, marked by testing and punishment.