Claire Oakley Creator Kelly Reilly Jackie Ellis Actor Rafe Spall Detective Eric Bull Actor Naomi Yang Jess Deng Actor Harry Lawtey Dylan Rees Actor Kimberley Nixon Cheryl Hill Actor Jonathan Pryce Solomon Bevan Actor William Thomas Owen Actor Amara Atwal Nessa Actor Dino Fetscher Gareth Morgan Actor Julian Lewis Jones Osian Northam Actor Irys Bea Williams Izzie Bevan Actor Osian Emlyn James Rees Actor Bella Salisbury Brooke Bevan Actor Mark Stanley Actor Dinita Gohil Actor Brian Gleeson Actor Rhodri Meilir Actor Scott Bassett Producer Elwen Rowlands Executive Producer