Sarah Phelps

Sarah Greene

Detective Cassandra 'Cassie' Maddox

Killian Scott

Detective Sgt. Robert 'Rob' Reilly

Peter McDonald

Jonathan Devlin

Leah McNamara

Rosalind Devlin

Conleth Hill

Superintendent O'Kelly

Tom Vaughan-Lawlor

Detective Frank Mackey

Kathy Monahan

Margaret Devlin

Amy Macken

Katharine 'Katy' Devlin / Jessica Devlin

Eugene O'Hare

Detective Quigley

Moe Dunford

Detective Sam O'Neill