Sisters

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)