 Natalia TenaJennifer Preston | Jennifer Preston |
 Emilia JonesCharlotte | Charlotte |
 Iwan RheonJonas | Jonas |
 Eleanor MatsuuraAngela Rossi | Angela Rossi |
 Danny WebbEmeril Benedict | Emeril Benedict |
 Tom Goodman-HillKeller | Keller |
 Franz DramehWilly G | Willy G |
 Jamie DravenLevi Mathis | Levi Mathis |
 Adrian SchillerDS 'Fat Freddy' Pierce | DS 'Fat Freddy' Pierce |
 Brian FergusonDickie Prince | Dickie Prince |
 Richenda CareyEvangeline Diehl | Evangeline Diehl |
 Elina AlminasGeisha | Geisha |
 Aiste S. GramMaria (as Aiste Gramantaite) | Maria (as Aiste Gramantaite) |
| RRichard CrehanBenny | Benny |
| MMartha GodberLouise | Louise |
| SSophie AdamsBallerina | Ballerina |
| RRichard MassaraRanking Officer | Ranking Officer |
 Sam BenjaminStevie | Stevie |
| BBobby CoelloDanny | Danny |
| TTom GibbonsMaurice | Maurice |
| EElliot PizerRookie | Rookie |
| DDanny SteeleScientist | Scientist |
 David G. RobinsonCaptain Hopkins (as David Robinson) | Captain Hopkins (as David Robinson) |
 Neil NewbonKeller's Aide | Keller's Aide |
 Russ BainDarius (uncredited) | Darius (uncredited) |
| RRichard CalderThe Architect (uncredited) | The Architect (uncredited) |
 Erin ShanagherJoanne Mathis (uncredited) | Joanne Mathis (uncredited) |
| FFaz AoufiLead Soldier / Gate Guard (uncredited) | Lead Soldier / Gate Guard (uncredited) |
| PPamela AshtonHome Office staff member (uncredited) | Home Office staff member (uncredited) |
| KKelly AutumnHomeless Refugee (uncredited) | Homeless Refugee (uncredited) |
