Song Joong-ki as Tae-ho

Kim Tae-ri as Captain Jang

Yoo Hai-jin as Bubs (voice)

Jin Sun-kyu as Tiger Park

Richard Armitage as James Sullivan / The CEO of UTS

Kim Moo-yul as Kang Hyun-woo

Park Ye-rin as Dorothy / Kang Kot-nim

Oh Ji-yul as Kim Su-ni

Kim Hyang-gi as Bubs' New Body

Nas Brown as Karum

Kevin Dockry as Pierre

Carla Fernanda Avila Escobedo as Camilla

Anupam Tripathi as James Sullivan's Secretary

Andrew William Brand as UTS Prime Minister

Hou Mengjun as UTS Boardmember

John D. Michaels as UTS Boardmember

Alym Tayyrov as UTS Boardmember

Gareth Fannin as UTS Boardmember

Phoebe Corey as UTS Boardmember

Joey Albright as Reporter 1

Guillermo Vazquez Garibay as Reporter 2

Jason Kvich as Reporter 3

Chiara Aguilar as Reporter 4

Gabriel Ruiz Benito as Black Fox 1

Ana Ruggiero as Black Fox 2

Gregory Skripchenko as Black Fox 3

Massimo Fierro as Black Fox 4

Rahel Limor as Black Fox 5

Yoon Hae-ju as Black Fox 6

Yoo Young-bin as Black Fox 7

Thomas Frederiksen as Police

Alison Rock as Research Director

Benjamin Spink as Researcher 1

Kim Dae-han as Researcher 2

Seo Dong-oh as Pig Father

Ariane Desgagnés-Leclerc as Doctor

Amy Pradeep Sawant as MR-13 Reception Clerk

Antonio Bompart as Court Staff

Nico Lesage as Lublong Ship Sailor 1

Guillaume Desbos as Lublong Ship Sailor 2

Joshua Wera as Lublong Ship Sailor 3

Maurice Turner Jr. as American Space Sweeper 1

Jamarian Bridges as American Space Sweeper 2

Milan-Devi LaBrey as American Space Sweeper 3

Ahmed Fouda as Egyptian Space Sweeper 1

Saif Khan Showpon as Egyptian Space Sweeper 2

Daniil Kuznetcov as Canadian Space Sweeper

Alexander Kapitonenko as Russian Space Sweeper

Oh Yun-su as Su-ni's Mother

Daniel C. Kennedy as News Anchor 1 (voice)

Bret Allan Lindquist as Space Cleaner

Garrison Farquharson-Keener as Sector 9 Mayor

Garan Fitzgerald as News Anchor 2 (voice)

김청아 as News Anchor 3 (voice)

Mike Yantzi as Gambler 1

Brandon Mervyn Jones as Gambler 2

Christian Lagahit as Restaurant staff

Christopher Gordon as Researcher from Earth 1

Bin Chan-uk as Harpoonist 2

Kim Dong-hyung as Harpoon of Cleaning Ship

Lee Yoo Ri as Woman from Magazine