Chloë Sevigny
Grace Collier
Stephen Rea
Dr. Philip Lacan
Lou Doillon
Angelique Tristiana
Dallas Roberts
Dr. Dylan Wallace
JR Bourne
Larry Franklin
William B. Davis
Dr. Lucas Bryant
Gabrielle Rose
Dr. Mercedes Kent
Serge Houde
Detective Kalen
Alistair Abell
Detective Connors
Colin Chapin
Coffee Shop Worker #1
Graeme Duffy
Coffee Shop Worker #2
Talia Williams
Lily
Rachel Williams
Eve
Erica Van Briel
Sofia Tristiana
David Purvis
Patrick - Aide
Guy Jellis
Male Attendant #1
Ross Viner
Male Attendant #2
Michael Curluck
Grace's Father
Dylan Basu
Peter
Ashtyn McGuire
Young Grace
Whittni Wright
Celia (uncredited)