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After ruling out the True Way, Grace turns her suspicions to Gruffudd. But the island seems to be galvanising for something else.
Anjli Mohindra
Grace Narayan
Jill Halfpenny
DCI Ann Fletcher
Mark Lewis Jones
Gruffudd Prosser
Lu Corfield
Lowri Bain
Sam Swainsbury
Father Douglas Carrisford
Marc Warren
Dr Ian Prideaux
