The War with Grandpa (2020)

Robert De Niro

Ed

Uma Thurman

Sally

Rob Riggle

Arthur

Oakes Fegley

Peter

Laura Marano

Mia

Cheech Marin

Danny

Jane Seymour

Diane

Christopher Walken

Jerry

Juliocesar Chavez

Billy

Isaac Kragten

Steve

T.J. McGibbon

Emma

Poppy Gagnon

Jennifer

Lydia Styslinger

Lisa

Joe Gelchion

Chuck

Colin Ford

Russell

Faizon Love

Store Manager

Rutanya Alda

Lynn Marino

Drew Scheid

8th Grade Monster

Betzaida Landín

Young Woman (as Betsy Landín)

Veronica Alicino

Nurse Alice

Owen D. Stone

Kid (as Owen Stone)

James Martin Kelly

Carl

Leon Lamar

Boat Rental Guy

Joe Foley

EMT #1

Joshua Childs

EMT #2

Clayton English

Referee

Suehyla El-Attar Young

Teacher (as Suehyla El-Attar)

Joanie Stewart

Carla

Ted Huckabee

Mechanic

Evan Weisman

Motorcycle Cop

Aidan FitzGerald

Weasely Sidekick

Heather Johansen

Young Mom

Debi Kimsey

Insurance Adjuster

Rudolf Weber

Window Installer 1 (as Rudy Weber)

Eddie Fiola

Window Installer 2

Kyah Barcourt

Middle School Student (uncredited)

Jasmine Bolton

Middle School Student (uncredited)

Tony Bradley

Funeral Mourner (uncredited)

Mellanie Hubert

Party guest (uncredited)

Gage Lawson

Teen at School (uncredited)

Alyssa AnnMarie Marquez

Jennifer's Friend (uncredited)

Daniel Martinez

Middle School Student (uncredited)