Episode 4 S01 E04

Carey Mulligan (as DI Kip Glaspie) Vineeta Rishi (as DC Rakhee Shah) Rob Jarvis (as DC Euan Johnson) Nathaniel Martello-White (as DS Nathan Bilk) Ben Miles (as DSU Jack Haley) John Simm (as David Mars) Billie Piper (as Karen Mars) Hayley Squires (as Laurie Stone) Nicola Duffett (as Alice Stone) George Georgiou (as Mehmet Akman) Ahd Kamel (as Fatima Asif) July Namir (as Mona Asif) Jeany Spark (as CPT Sandrine Shaw) Robert Portal (as MAJ Tim Dyson) Orla Brady (as Phoebe Dyson) Nicola Walker (as Jane Oliver) Kae Alexander (as Linh Xuan Huy) Nick Mohammed (as Fuzz Gupta) Saskia Reeves (as Deborah Clifford)

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