Chloë Sevigny

Character: Grace Collier

Stephen Rea

Character: Dr. Philip Lacan

Lou Doillon

Character: Angelique Tristiana

Dallas Roberts

Character: Dr. Dylan Wallace

JR Bourne

Character: Larry Franklin

William B. Davis

Character: Dr. Lucas Bryant

Gabrielle Rose

Character: Dr. Mercedes Kent

Serge Houde

Character: Detective Kalen

Alistair Abell

Character: Detective Connors

Colin Chapin

Character: Coffee Shop Worker #1

Graeme Duffy

Character: Coffee Shop Worker #2

Talia Williams

Character: Lily

Rachel Williams

Character: Eve

Erica Van Briel

Character: Sofia Tristiana

David Purvis

Character: Patrick - Aide

Guy Jellis

Character: Male Attendant #1

Ross Viner

Character: Male Attendant #2

Michael Curluck

Character: Grace's Father

Dylan Basu

Character: Peter

Ashtyn McGuire

Character: Young Grace

Whittni Wright

Character: Celia (uncredited)