Mark Addy
— Sgt John Rook
Maxine Peake
— WPC Kate McFay
Darren Boyd
— PC 'Puffy' Tromblay
Hattie Morahan
— WPC Julie Cardigan
Rhashan Stone
— Sgt Trev Ellington
Phil Davis
— CI Albert Custer
Tunji Lucas
— PC Jermaine Barrat
Joanna Horton
— WPC 'Tazer' Horton
Steve Money
— DS Gary Bliss
Cloudia Swann
— Susan Rook
Will Irvine
— Ray Edwards
Nila Aalia
— Dr Parvaz
Florence Hoath
— Sheena West
Danni Bennatar
— Florrie Rook