Cal MacAninch

as DI John Keenan

Richard Harrington

as DS Luke French

Jimmy Akingbola

as PC Neil Parker

Zöe Lucker

as Desk Officer Kate Keenan

James Hillier

as Sergeant Christian Young

David Sterne

as Sergeant Edward "Mac" McFadden

Chloe Howman

as PC Kelly Cooper

Joe Jacobs

as PC Billy Jackson

Elaine Glover

as PC Lucy Slater

Sara Powell

as Rachel Barker