Little Boy

Jakob Salvati

Pepper Flynt Busbee / Little Boy

Emily Watson

Emma Busbee

Cary-Hiroyuki Tagawa

Hashimoto

Michael Rapaport

James Busbee

David Henrie

London Busbee

Ben Chaplin

Ben Eagle

Eduardo Verástegui

Fr. Crispin

Ted Levine

Sam

Ali Landry Monteverde

Ava

Abraham Benrubi

Teacup

Kevin James

Dr. Fox

Tom Wilkinson

Fr. Oliver

Toby Huss

Colonel Bob

Kelly Greyson

Tyra

Candice Azzara

Bertha

Rick Mora

Kid Falcon

James DuMont

Harvey

Travis T. Flory

Soda Fountain Clerk

Sam Kindseth

Ronnie (Bully 2)

David Ury

Sir Pent

James MacDonald

Recruitment Sergeant

Winston James Francis

Bukha

Lorna Scott

Nurse Barbara

Lukas Behnken

Leonard Rice

Montserrat Espadalé

Sister Paulette

Mary Stein

Martha

Masashi Odate

Japanese Colonel

Theodora Greece

Eliza the Girl on Beach

Ric Sarabia

Mike the Gambler

Eijiro Ozaki

Masao Kume

Jennifer Cadena

Army Nurse

Masami Kosaka

Commander Tokyo Joe

Scott Subiono

Dr. Hesley

Aaron Leddick

Red Cross Soldier

J. Skylar Testa

Army Medic

Alex Trevino

Wounded Soldier at Hospital

C.K. McFarland

Doris

Michael D. Nye

Gilliam

Matthew Scott Miller

Freddy Fox

Eddie Driscoll

Newsreel Narrator (voice)

Jill Kelly

Spider Lady

Keisuke Akizawa

Japanese Soldier

Tokio Sasaki

Young Japanese Soldier

Tommy Lamey

Fisherman #1

Kenny Davis

Fisherman #2

Fernando Sur

Kid at Ben Eagle show

Barry Ford

The Narrator (voice)

Ike Kawaguchi

Samurai Warrior in Dojo

Americus Abesamis

Giant Tokyo Joe

Robert Noble

Lou the Bartender

Chuck Lines

Prisoner of War

Jon Bangle

Prisoner of War

Zero Kazama

Wild Tokyo Joe (uncredited)

Kaiser Johnson

Col. Peter Stouff (uncredited)

Luke Custer

Prisoner of War (uncredited)

Brian Takahashi

Japanese Soldier #2

Brian Hatch

Man in Church

Carsen Warner

voice actor