Sophia Myles
— Beth Barnes
David Hoflin
— Buck Johnson
Amanda Abbington
— Connie
Kevin McNally
— Colonel Pike
Talisa Garcia
— Sofia Perez
Don Gilet
— Martin
Clive Francis
— George Scrivens
Akie Kotabe
— Satoshi Nakamoto
Jonah Paull
— Alejandro / Young Sophia
Kayode Akinyemi
— Alonzo
Pilar Amores
— Sofia's Mother
Jamie Bacon
— Moonbeam
Sophie Barker
— Warrant Officer Gomez
Sandy Batchelor
— Arnold
Honor Davis-Pye
— Young Beth
Amit Dhut
— Bo
Justin Dill
— Captain Goose
Donavan Imber
— Kumara
Kevin Interdonato
— Beth's Dad
Ray Strasser King
— Josh
David Levine
— Cleaner
Hudson Lister
— Buck's Dad
Carol MacReady
— Alice Bertrand
Rufus McCourt
— Young Buck
Mick Sands
— Cleaner
Arthur Sylense
— Chip