Sam Worthington as Mack Phillips

Octavia Spencer as Papa / Elouisa

Tim McGraw as Willie

Aviv Alush as Jesus

Sumire as Sarayu

Radha Mitchell as Nan Phillips

Graham Greene as Male Papa

Gage Munroe as Josh Phillips

Megan Charpentier as Kate Phillips

Lane Edwards as Officer Dalton

Alice Braga as Sophia

Ryan Robbins as Emil Ducette

Emily Holmes as Vicky Ducette

Amélie Eve as Missy Phillips

Jordyn Ashley Olson as Emily Ducette

Laura MacKillop as Amber Ducette

Derek Hamilton as Mack's Dad

Tanya Hubbard as Mack's mom

Carson Reaume as Young Mack Phillips

David MacKay as Preacher

Chris Britton as Church Deacon

Kendall Cross as Special Agent Wikowski

Jay Brazeau as Tony

Greta Makena Gibson as Teenage Girl

David Longworth as Older Camper

Ty Olsson as 1950s Mack's Grandpa

Leena Manro as Nurse

Kayla Fielding as Aly Taylor

Grace Netter as Girl on Bridge

Nicholas Holmes as 1950s Young Mack's Dad

Brayden Snow as Meadow Kid (uncredited)

Kayzhia Snow as Meadow Kid (uncredited)