Ukweli Roach
as DI Jack Caffery
Sacha Dhawan
as Honey
Iwan Rheon
as Molina
Juliet Stevenson
as Matilda Anchor-Ferrers
Owen Teale
as Oliver Anchor-Ferrers
Annes Elwy
as Lucia
Siân Reese-Williams
as DI Maia Lincoln
Tim Treloar
as The Walking Man
Ciarán Joyce
as D.I. Prody
Karl Johnson
as Colonel Frink
Kezia Burrows
as Veronica
Hywel Simons
as Robbie