Jennifer Lawrence as Grace

Robert Pattinson as Jackson

Sissy Spacek as Pam

LaKeith Stanfield as Karl

Nick Nolte as Harry

Gabrielle Rose as Jen

Clare Coulter as Courtney

Sarah Lind as Cheryl

Luke Camilleri as Greg

Victor Zinck, Jr. as Tom

Debs Howard as Marsha

Phillip Forest Lewitski as Charlie

Georgina Lightning as Kathleen the Orderly

Darren Moore as Gerry

Lauren Viau as Bessie

Michael Shepherd as Darryl

Qado as Robert

Kasmere Trice Stanfield as Sasha

Tom Carey as Therapist

Tyler Lynn Smith as Burger Waitress

Saylor McPherson as Young Cashier

Sarah Vanderschoot as Beach Girl

Phoenix Valentine as Other Teenage Girl