Ernest Borgnine

Grandpa

Julie Hagerty

Bonnie

Greg Evigan

Peter

Jack Scalia

Bailey Silverwood

Bug Hall

Travis

Josh Paddock

Roger

Vanessa Evigan

Susie

Paul Sampson

Matt Henderson

George Yager

Sheriff Edgewood

John Green

Technician

Molly Ann Lashinsky

Debbie

Ellen Travolta

Dr. Vogul

Jason Evigan

Sammy

Christopher Wanner

Joey

Doyle McCurley

Undercover Cop

Harold Green

Stockboy

Roger Lodge

Television Reporter

Jonathan Rau

Ernie

David E. Ornston

Flegmer Brother #1

Jack Stone

Flegmer Brother #2

Marc Dahlstrom

Young Grandpa