- Rhona Mitra Comandante Eden Sinclair
- Bob Hoskins Bill Nelson
- Adrian Lester Sargento Norton
- Alexander Siddig Primer ministro Hatcher
- David O'Hara Michael Canaris
- Malcolm McDowell Dr. Kane
- Sean Pertwee Dr. Talbot
- Nora-Jane Noone Read
- Martin Compston Joshua
- MyAnna Buring Cally
- Emma Cleasby Katherine Sinclair
- Jason Cope
- Axelle Carolyn
- Cal Macaninch Canciller Falco
