Joel Edgerton as Sam Carter, an American helicopter pilot and Vietnam War veteran running a supply operation to the bases. He and his two co-pilots are left in the dark as to why they are there and what is the mysterious thing the scientists have found.
Ulrich Thomsen as Dr. Sander Halvorson, the arrogant Danish leader of alien research. He orders the team to obtain a sample of the recently discovered creature despite Kate's warnings.
Eric Christian Olsen as Adam Finch, a young American scientist working as Dr. Sander's research assistant who invites Kate to the Norwegian base.
Paul Braunstein as Griggs, a crew-chief member of the American helicopter transport team.
Trond Espen Seim as Edvard Wolner, a notable Norwegian geologist who is the station commander and an old friend of Sander.
Kim Bubbs as Juliette, a French geologist who is part of Edvard's team.
Jørgen Langhelle as Lars, an ex-soldier who works as the dog keeper of the Norwegian base, also the only member of the Norwegian base who does not speak English. Lars is also revealed to be the Norwegian shooter in the original film.
Ole Martin Aune Nilsen as Matias, the helicopter pilot of the Norwegian base currently in a mission to restock kerosene at Halley. Matias, like Lars, is revealed to be aboard the Norwegian helicopter in the 1982 film.
Michael Brown as Hank, a security guard and bit part who introduces Adam and Sander to Kate.