Viola

Daisy Ridley

Todd Hewitt

Tom Holland

Mayor David Prentiss

Mads Mikkelsen

Jim Johnson

Ray McKinnon

Ben

Demián Bichir

Aaron

David Oyelowo

Davy Prentiss Jr.

Nick Jonas

Hildy

Cynthia Erivo

Cillian Boyd

Kurt Sutter

Karyssa Hewitt

Bethany Anne Lind

Farnbranch Man (uncredited)

Harrison Osterfield

Wilf

Óscar Jaenada

Daws

Vincent Leclerc

Piper

Oluniké Adeliyi

Little Todd Hewitt

Blane Crockarell

Charlie

François Gauthier

Julie

Mylène Dinh-Robic

Hammar

Tyrone Benskin

Prentiss Woman; ghost

Leia Crowder

Mr. Phelps

Frank Fontaine

Captain Alvarez

Bobby Hernandez

Tam

Don Jordan

Answer Camp Woman (uncredited)

Tara Nicodemo

Ivan

Patrick Garrow

Gault

Julian Richings

Gwen

Claudia Besso

Fisherman #1

Michael Dyson

Jenny Hewitt

Isabelle Giroux

Lilly

Jazzy Ellis

Prentisstown Man #1

Maxwell McCabe-Lokos

Fisherman (uncredited)

Yannick Lupien

Whaler (uncredited)

Jad Saikali

Prentisstown Man #2

Stephen Eric McIntyre

Whaler (uncredited)

Marc Primeau

Young Davy (uncredited)

Bryce Bruckbauer

Caleb

Peter Seaborne

Mayor Camp Man #1

Jean Michel Paré

Prentiss

Alexa Whitaker

Prentiss Woman

Marché Day

Prentiss Kid

Sawyer D. Jones

Whaler

Dave Campbell