Who plays Oh Won-Sik in Chief of Staff?

Oh Won-Sik is played by Jung Woong-in.

How is Oh Won-Sik connected to other characters?

Oh Won-Sik has 4 mapped relationships in Chief of Staff. Explore the interactive relationship map for details.

Oh Won-Sik — Rival Staff Member — Jang Tae-Joon (Lee Jung-jae)
Competitive and antagonistic dynamic as Oh Won-Sik's actions repeatedly threaten Jang Tae-Joon's position.
Oh Won-Sik — Leader and Subordinate — Song Hee-Seob (Kim Kap-soo)
Hierarchical power dynamic where Song Hee-Seob's political maneuvers dictate Oh Won-Sik's actions and risks.
Oh Won-Sik — Political Opponent — Jang Tae-Joon (Lee Jung-jae)
Ongoing political conflict where Oh Won-Sik's actions and rumors directly challenge Jang Tae-Joon's strategic decisions.
Oh Won-Sik — Suspicious Rival — Yoon Hye-Won (Lee Elijah)
Distrust-based conflict where Oh Won-Sik's suspicions toward Yoon Hye-Won threaten team cohesion.