Episode 4 S01 E04

Lisa Dwan (as DI Fia Lucey) Rory Keenan (as Cian Furlong) Amy De Bhrún (as Niamh Furlong) Aidan McArdle (as Charlie Reid) Stanley Townsend (as Bill McGuire) Andrew Bennett (as Donal Riley) Lisa Dwyer Hogg (as Emma Riley) Jade Jordan (as Donna Walsh) Lloyd Hutchinson (as Supt. Shanahan) Barry McGovern (as Dr. James Whelan) Hannah James-Scott (as DG Angela Webster) Mae Higgins (as Young Fia) Seán T. Ó Meallaigh (as Jack Lucey) Ian Dillon (as Garda Officer (uncredited)) Janet Grene

police detective missing person