Sam Worthington as Lt. Rick Janssen

Taylor Schilling as Dr. Abi Janssen

Tom Wilkinson as Prof. Martin Collingwood

Agyness Deyn as Dr. Freya Upton

Nathalie Emmanuel as W.O. Tally Rutherford

Corey Johnson as Petersen

Aleksandar Jovanović as Sergeant Johan Werner

Steven Cree as Major Timothy Pike

Diego Boneta as Dr. Luis Hernandez

Noah Jupe as Lucas Janssen

Naomi Battrick as Rayenne Gorski

Aaron Heffernan as Zane Gorski

Alex Lanipekun as Andrew Rutherford

Nathalie Poza as Cpt. Vita Ramos

Francesc Garrido as Colonel Solano

Kyle Soller as Dr. Elliot Blake

Ben Aldridge as Lawrence

Gustavo Salmerón as Felipe Ramos

Noemi Parpaiola as Agnes Ramos

Megan Rowland as Zoe Gorski

Andrés González Cano as Aiden Gorski

Samuel González Cano as Caden Gorski