Liam Cunningham

as DCI Billy O'Connell

Rachel Davies

as DCI Marsha Beagley

Nick Reding

as DS Keanan

Saira Todd

as Katline Voikevich

Keith Barron

as Eddie Longshaw

Ken Bones

as Commander Johnson

Ken Bradshaw

as DS Dewhurst

Tim Dantay

as DI Brian Sagar

Stephen Hackett

as DS Steven Springfield

Esther Hall

as Julie Ostrovsky

Velibor Topic

as Mikki Ostrovsky

Andrew Knott

as Scully

Jane Slavin

as DC Fiona Muir

David Prosho

as Dr Fortnum

Maureen Hibbert

as DI Christine Baker

Ivan Marevich

as Andreyev

Rad Lazar

as Uri

James Masters

as Screen Commander

Shaun McGowan

as Desk Sergeant

Griff Harries

as Tramp

Jonathan Dahl

as Russian Youth

Helen Grayson

as Russian Immigrant (as China-Black)