Josh Gad

Dogs: Bailey / Buddy / Tino / Ellie (voice)

KJ Apa

Teen Ethan

Britt Robertson

Teen Hannah

Dennis Quaid

Adult Ethan

Peggy Lipton

Adult Hannah

Juliet Rylance

Elizabeth - Ethan's Mom

Luke Kirby

Jim - Ethan's Dad

John Ortiz

Carlos

Kirby Howell-Baptiste

Maya Williams

Pooch Hall

Al

Logan Miller

Todd

Gabrielle Rose

Grandma Fran

Caroline Cave

Ellen - Boss' Wife

Nicole LaPlaca

Wendi

Michael Patric

Sam

Michael Bofshever

Grandpa Bill

Primo Allon

Victor

Kalyn Bomback

Yolanda

Peter Kelamis

Dad's Boss

Jane McGregor

Rachel

Kelly-Ruth Mercier

Atlanta Vet

Kwesi Ameyaw

Cop

Paul Jarrett

Police Lieutenant

Anita Daher

Mother at Shelter

Alicia Johnston

Hysterical Mother

Naomi Frenette

Kidnapped Girl

Brooke Warrington

Bree

Bryce Gheisar

Ethan - 8 Years Old

Robert Mann

Delivery Workman

Ron Verwymeren

Delivery Workman

David J. Lyle

Country Vet

Cory Wojcik

Puppy Mill Owner

Ross Douglas Noble

Puppy Mill Customer

Andrew W. Nolan

Football Coach

Jordan Butterill

Teammate

John C. MacDonald

Teammate

Brent Holtzman

Police Captain

Christopher Pearce

Policeman

Violet Haas

Elderly Woman

Darcy Higginbotham

Farm Hand

Danesha Lee

Animal Control Officer

Dan De Jaeger

Father at Shelter

Reine Lecuyer

Daughter at Shelter

Rayna Ens-Armstrong

Daughter at Shelter

Mackenzie Thornton

Tweener Girl

Avery Thompson

Tweener Girl

Aidan Ritchie

Ambulance Attendant

Kenyan Alexander Walcot

Ty - 5 Years Old

Treyton Augustus Walcot

Richie - 4 Years Old

John Bluethner

Professor

James Janssens

Alzheimer's Patient

Paul Griggs

Hot Dog Vendor

Grant Burr

Hardware Store Clerk

Ronald Boyd Johnson

Neighbor

Chris Webb

Kidnapper

Evan Martin

Punk Boy

Tyson Wagner

Boyfriend in Park

Dean Mckenzie

Detective

Tom Young

Hardware Store Employee