Guest Stars Allison Harding as ACC Leighton Catherine Walker as Louise Edwards Michael Wildman as Stephen Mason Kaye Wragg as Linda Bradley Barry O'Connor as Peter Kelly Beau Gadsdon as Amy Mercer Chris Reilly as DCI Jim Belmont Tallulah Evans as Carrie Booth Conor Sánchez as Aaron Kelly Charlotte McCurry as DC Kate Trent Tom McKay as Eric Mercer Noa Baurain as Rain Bradley Wayne Foskett as Michael Edwards Freya Hannan-Mills as Maggie Bradley Daire Scully as Rowan Edwards