Deragh grew up in a theatre family. Her mother, from Belfast, runs the Shaw Festival in Niagara-on-the-lake and her father is a member of the ensemble. Her father’s side of the family has been in theatre for generations – her great-grandparents were members of Shaw’s company and St. Joan was written with her great-grandmother in mind. Deragh and Hannah (who plays ‘Abby’) have known each other since childhood, their parents being close friends.
Deragh studied creative writing at Concordia University and lives in Montreal, Quebec. This is her first film role.