Characters played by Bae Doona
Doctor Song Ji-an
Characters played by Gong Yoo
Han Yoon-jae
Characters played by Joon Lee
Captain Ryoo Tae-seok
Captain Ryu Tae-Suk
Characters played by Kim Sun-young
Doctor Hong Ga-Young
Characters played by Sung-Wook Lee
Kim Hee Sun
Characters played by Rae-Hyung Cha
E1
Characters played by Yoo Hee-je
E2
Characters played by Yoo Seong-ju
Mr. Hwang
Characters played by Hae-yeon Kil
Director Choi
Characters played by Heo Sung-tae
Kim Jae-sun
Characters played by Choi Young-Woo
Lee Gi-Su [co-pilot]
Lee Gi Su [co-pilot]
Characters played by Mal-Geum Kang
Song Won-Kyung
Doctor Song Won Kyung [Ji An's sister]
Characters played by Moo-Saeng Lee
Chief Gong Soo-Hyuk
Chief Gong Soo Hyuk
Characters played by Jung Soon-won
Gong Soo-Chan
Gong Soo Chan
Characters played by Chase Yi
E2
Characters played by Jennifer Sun Bell
Doctor Song Ji-An
Characters played by Feodor Chin
Kim Hee-sun
Characters played by Si-ah Kim
Luna
Characters played by Bo-Min Kim
Han Ha-Jin
Han Ha Jin
Characters played by Gina Su
Various
Characters played by Ji-Woo Kang
Song Ji-An [Young]
Song Ji-an [Young]
Young Song Ji An
Characters played by Gong Jin Seo
Song Won-Kyung [Young]
Song Won Kyung [Young]
Characters played by Hee-jin Choi
Doctor in NMC
Characters played by Harrison Xu
Lee Gi-Su
Characters played by Nicole Fong
Automated therapist
Female crew
Characters played by Hye-ri Yoon
Eun Ji Young [original co-pilot]
Characters played by Lee Dong-Kyu
Anchorman
Characters played by Jung Woo-sung
The Man in Tower
Characters played by Ahn Se-bin
Girl in the crowd
Characters played by Ahn Seong-Bong
Soldier
Characters played by Daniel C Kennedy
American News Anchor
Characters played by Ahn Dong-Goo
Employee