Adrien Brody as Peter Bower

Sam Neill as Duncan Stewart

Malcolm Kennard as Barry

Chloe Bayliss as Elizabeth Valentine

Bruce Spence as Felix

Robin McLeavy as Barbara Henning

Jenni Baird as Carol Bower

Anna Lise Phillips as Erica George

Olga Miller as Erica George (ghost)

Michael Whalley as Officer Samuels

Matthew Sunderland as Steve, Barry's Brother

George Shevtsov as William Bower

Emma O'Farrell as Evie Bower

Greg Poppleton as Patient

Barbara Gouskos as Patient

Jill McKay as Patient

Jesse Hyde as Young Peter

Alexander McGuire as Young Barry

Jeanette Cronin as Head Mistress (uncredited)

Suzie Steen as Teacher (uncredited)