They join the already announced cast of Maeve Dermody, Penelope Mitchell and Damien Garvey.
Mitchell (Hemlock Grove, The Vampire Diaries) will play Skye Williams, a patient in a psychiatric clinic who is accused of a gruesome murder. Dermody (Serangoon Road, Griff the Invisible) is Dr Sarah Faithfull, an empathetic psychiatrist who believes there is more to the case.
Pedersen, who played the lead in Ivan Sen.s Mystery Road and is a regular in the ABC Jack Irish telemovies,. will portray Dr Nicholas Trengrove, a criminal psychologist who tries desperately to ensure that those around him stay grounded and not surrender to any imagined horrors in the dark.
Winter, who appears in Craig Monahan.s upcoming drama Healing