Aimee Teegarden as Amanda (credited as Aimeé Teegarden), Benjamin Hollingsworth as Derrick, Frances Flanagan as Lori, Robyn Bradley as Grace, P. Lynn Johnson as Constance, Eva Tavares as Effie, Scarlett Tupper as Young Amanda, Jesse Moss as Craig, Jennifer Oleksiuk as Tiff (credited as Jen Oleksiuk), Drew Henderson as Samuel, Grant Vlahovic as Dan, Lily Yawson as Gladys, Cadence Compton as Little Girl, Laura Adkin as Young Grace, Stefania Indelicato as Competition Announcer, Madeleine Kelders as Competition Judge, Robert Egger as Tom, Sophie Sedlacek as Young Lori, Avril Nickolls as Young Constance, Kazuko Arthur as Lacey, Alozie LaRose as Teen Boy, David Russell James as Grieving Dad