 Jeffrey Dean MorganJacob Kanon | Jacob Kanon |
 Famke JanssenValerie Kanon | Valerie Kanon |
 Cush JumboDessie Lombard | Dessie Lombard |
 Joachim KrólInspector Klaus Bublitz | Inspector Klaus Bublitz |
 Steven MackintoshDetective Inspector Rupert Pierce | Detective Inspector Rupert Pierce |
 Naomi BattrickMarina Haysmith / Sylvia Randolph | Marina Haysmith / Sylvia Randolph |
 Ruairí O'ConnorSimon Haysmith / Mac Randolph | Simon Haysmith / Mac Randolph |
 Denis O'HareSimon Haysmith | Simon Haysmith |
 Eva RöseDetective Sergeant Agneta Hoglund | Detective Sergeant Agneta Hoglund |
 Lukas LoughranDetective Evert Ridderwall | Detective Evert Ridderwall |
 Dylan Devonald SmithPieter Holl | Pieter Holl |
 Sallie HarmsenNienke Holl | Nienke Holl |
 Orla O'RourkeNancy | Nancy |
 Christopher PizzeyCharles Hardwick | Charles Hardwick |
 Tim AhernBill Brown | Bill Brown |
 Martin WennerMatts | Matts |
| CCaroline BartholdsonFemale Detective | Female Detective |
| DDaniel SjöbergMale Detective | Male Detective |
| DDana BlacklakeYoung Helsinki Reporter | Young Helsinki Reporter |
 Celine AbrahamsAirline Representative | Airline Representative |
 Leander VyveyDetective Hunziker | Detective Hunziker |
 Ben VinnicombeJosé Fernández | José Fernández |
| RRose EtheringtonYoung Sylvia | Young Sylvia |
| JJack WheatleyYoung Mac | Young Mac |
| LLisen RosellTilda | Tilda |
| DDionne HernemarJihan | Jihan |
| AAnna JonesSky News Reporter | Sky News Reporter |
 Maryam GraceKimberley Stevensen - London Murder Victim | Kimberley Stevensen - London Murder Victim |
| RRyan O'SullivanThomas Stevensen - London Murder Victim | Thomas Stevensen - London Murder Victim |
| RRory BrayAnthony Santos - Madrid Murder Victim | Anthony Santos - Madrid Murder Victim |
