Cast Credits Prison Playbook (2017) Guest starring as Doctor Jung Dae Hyun (4 episodes) Episode 1x06: Episode 6 (Dec 7, 2017) Episode 1x05: Episode 5 (Dec 6, 2017) Episode 1x04: Episode 4 (Nov 30, 2017) Episode 1x03: Episode 3 (Nov 29, 2017) View 1 more View 1 less KBS Drama Special (2010) Guest starring as Ji Ho Episode 2014-02-02: First Birthday (Feb 2, 2014)
