Lisa McGee Creator, Writer, Executive Producer Tobias Beer Creator, Writer, Executive Producer Emmett Scanlan Michael Actor Emily Reid Ophelia Actor Catherine Walker Roisin Actor Paul Mescal Sean Actor Eleanor Methven Mary Actor Ian McElhinney Hugh Actor Shelley Conn Ruth Actor Dempsey Bovell Matthew Actor Louisa Harland Cloda Actor Lloyd Everitt Richard Actor Saffron Coomber Annabelle Actor Cathy Brennan-Bradley Sheila Actor Ciara Berkeley Lucy Actor Chloë Thomas Director Charlie Hampton Executive Producer Charles Pattinson Executive Producer Imogen O'Sullivan Producer Hannah Peel Original Music