Episode Four

Summary

When Eastwood's investigation into Olson's murder throws open some uncomfortable truths for Burns, Gibson comes under increased pressure in her hunt for Belfast's killer.

Guest stars

• Archie Panjabi as Tanya Reed Smith
• Stuart Graham as Matthew "Matt" Eastwood
• Valene Kane as Rose Stagg
• Bronagh Waugh as Sally Ann Spector
• Aisling Franciosi as Katie Benedetto
• Simon Delaney as Jerry McElroy
• Lisa Dwyer Hogg as Marion Kay
• Sarah Beattie as Olivia Spector
• Séanín Brennan as Liz Tyler
• Brian Milligan as James Tyler