Oakes Fegley

Ben

Millicent Simmonds

Rose

Julianne Moore

Lillian Mayhew / Rose

Michelle Williams

Elaine

Cory Michael Smith

Walter

James Urbaniak

Dr. Kincaid, Rose's Father

Damian Young

Otto, Museum Guard

Patrick Murney

Workman

Lauren Ridloff

Pearl, The Maid

Anthony Natale

Dr. Gill, Teacher of the Deaf

Carole Addabbo

Miss Conrad at the Museum

Howard Seago

Remy Rubin, Theater Director

Brian Berrebbi

Stage Manager

John P. McGinty

Valentin

Mark A. Keeton

Shopkeeper

Patrick Wiley

Window Dresser

Garrett Zuercher

Officer Engel

Jared Johnston

Officer Murtha

Murphy Guyer

Security Chief

Ekaterina Samsonov

Hannah

Sawyer Niehaus

Blessing

Lilianne Rojek

Florence

Michael W. Gaines

Butler

Jaden Michael

Jamie

Tom Noonan

Walter

Morgan Turner

Janet

Amy Hargreaves

Aunt Jenny

Sawyer Nunes

Robbie

Raul Torres

Jamie's Father

Mandela Bellamy

Woman on Bus

Jim Lavin

ER Doctor

Colleen Cosgrove

ER Nurse

Hays Wellford

Greg Coons at the Bus Stop

Asa Liebmann

Thief

John Boyd

Danny

Oladamolami Adisa

Signing Hands

Mylo Barrett

Signing Hands

Robinho Cruz

Signing Hands

Vanessa DeLeon

Signing Hands

Jordana Lurman

Signing Hands

Tom Waters

1970's Business Man (uncredited)

Connor Moeller

Museum Boy (uncredited)

Mackenzie Grace Castle

Museum Girl (uncredited)

Derek Chadwick

Liam (uncredited)

Logan Taylor

Promenade Child / Museum Child (uncredited)