Sul Kyung-gu

Kim Jae-guk

Doh Kyung-soo

Hwang Sun-woo

Kim Hee-ae

Yoon Moon-yeong

Park Byung-eun

Jeong Min-gyu

Cho Han-chul

The Minister

Choi Byung-mo

The Vice Minister

Hong Seung-hee

Kang Han-byul

Lee Sung-min

Hwang Gyu-tae

Kim Rae-won

Lee Sang-won

Lee Yi-kyung

Cho Yoon-jong

Choi Jung-woo

The President

Park Seon-yeong

Narrator

Brad Little

NASA Administrator

Paul de Havilland

NASA Deputy Administrator

Jonathan Ehren Groff

James Glenn

Brian M. Van Hise

Andy Walker

Gina Theresa Williamson

Julie Anderson

Jack Lyons

William Jones

Baek Seung-chul

Rescue Leader

Han Soo-hyun

FDO

Kim Dong-hwan

INCO

Chun Sin-hwan

Guidance

Lee Sang-won

Prop

Yeom Ji-young

Telmu

Lee Yoon-jae

Doctor 1

Choi Dae-sung

Doctor 2

Cha Young-ju

Space Center Staff

Kang Jun-seok

Space Center Staff

Jung Yun-ha

TM/TC

Choi Pil-sang

Space Center Staff

Jason Lane Cutler

CNN anchor

Amy Aleha

News Anchor

Mitch Craig

NASA Agent Hardy

Park Seok-won

Anchor

Kim Ki-tae

Naro Space Center Staff

Kim Si-kook

Naro Space Center Staff

Choi Hye-jin

Yoon-jong's Wife