Sean Meredith - Jonas Armstrong. ... Jess Meredith - Chanel Cresswell. Jess Meredith is Sean’s wife (with whom he has a troubled relationship) and the mother of the twins.

Jonas Armstrong and Chanel Cresswell (who plays Jess Meredith in the ITV series) have dropped some hints of who the actual killer might be in The Bay on ITV. Related articles The Bay on ITV cast ...