Heo Joon is a fourth year resident at Hanse Hospital.
Appearances
Doctor John
Guest cast, played by Kwon Hwa Woon
- Episode 1x04: 0.00001% hope (2) (Jul 20, 2019)
- Episode 1x05: Champions (1) (Jul 26, 2019)
- Episode 1x06: Champions (2) (Jul 26, 2019)
- Episode 1x07: Facing your fears (1) (Jul 27, 2019)
- Episode 1x08: Facing your fears (2) (Jul 27, 2019)
- Episode 1x10: 21g, the Weight of a Soul (2) (Aug 2, 2019)
- Episode 1x11: Memories of pain (1) (Aug 3, 2019)
- Episode 1x12: Memories of pain (2) (Aug 3, 2019)
- Episode 1x14: Secrets & lies (2) (Aug 9, 2019)
- Episode 1x15: Understanding someone (1) (Aug 10, 2019)
- Episode 1x16: Understanding someone (2) (Aug 10, 2019)
- Episode 1x17: Terminal: Terminally ill, incurable (1) (Aug 16, 2019)
- Episode 1x18: Terminal: Terminally ill, incurable (2) (Aug 16, 2019)
- Episode 1x19: An ominous foreboding on a sunny afternoon (1) (Aug 17, 2019)
- Episode 1x20: An ominous foreboding on a sunny afternoon (2) (Aug 17, 2019)
- Episode 1x21: Up (1) (Aug 23, 2019)
- Episode 1x22: Up (2) (Aug 23, 2019)
- Episode 1x23: Schrödinger's Cat (1) (Aug 24, 2019)
- Episode 1x24: Schrödinger's Cat (2) (Aug 24, 2019)
- Episode 1x25: The promise of trying (1) (Aug 30, 2019)
- Episode 1x26: The promise of trying (2) (Aug 30, 2019)
- Episode 1x27: Select any (1) (Aug 31, 2019)
- Episode 1x29: The mind of the departed (1) (Sep 6, 2019)
- Episode 1x30: The mind of the departed (2) (Sep 6, 2019)
- Episode 1x31: Breaking up is like breaking up with someone you hope to see again someday (1) (Sep 7, 2019)
- Episode 1x32: Breaking up is like breaking up with someone you hope to see again someday (2) (Sep 7, 2019)