Sol Kyung-gu character Kim Jae-guk
Doh Kyung-soo character Hwang Sun-woo
Kim Hee-ae character Yoon Moon-yeong
Park Byung-eun character Jeong Min-gyu
Jo Han-chul character The Minister
Choi Byung-mo character The Vice Minister
Hong Seung-hee character Kang Han-byul
Lee Sung-min character Hwang Gyu-tae
Kim Rae-won character Lee Sang-won
Lee Yi-kyung character Cho Yoon-jong
Choi Jung-woo character The President
Park Seon-yeong character Narrator
Brad Little character NASA Administrator
Paul de Havilland character NASA Deputy Administrator
Jonathan Ehren Groff character James Glenn
Brian M. Van Hise character Andy Walker
Gina Theresa Williamson character Julie Anderson
Jack Lyons character William Jones
Baek Seung-chul character Rescue Leader
Han Soo-hyun character FDO
Kim Dong-hwan character INCO
Chun Sin-hwan character Guidance
Lee Sang-won character Prop
Yeom Ji-young character Telmu
Lee Yoon-jae character Doctor 1
Choi Dae-sung character Doctor 2
Cha Young-ju character Space Center Staff
Kang Jun-seok character Space Center Staff
Jung Yun-ha character TM/TC
