Pat Finley

Tom McGowan

Tony Perkis Jr./Tony Perkis Sr.

Ben Stiller

Gerald "Gerry" Garner

Aaron Schwartz

Sam

Joseph Wayne Miller

Roy

Kenan Thompson

Cody

Cody Burger

Harvey Bushkin

Jerry Stiller

Josh Birnbaum

Shaun Weiss

Alice Bushkin

Anne Meara

Lars

Tom Hodges

Julie

Leah Lail

Kenny

Allen Covert

Tim

Paul Feig

Camp Hope Salesman

Tim Blake Nelson

Phillip Grubenov

Max Goldblatt

Maury Garner

Jeffrey Tambor

Chef (Uncredited)

Peter Berg

Chris Donelly

David Bowe

Simms

Robert Zalkind

Nicholas

David Goldman

Dawson

Patrick LaBrecque

Homer

Judd Apatow

Mrs. Garner

Nancy Ringham

Camp MVP Racer

Seth St. Laurent

Camp MVP Pitcher

Bobby Fain

Soccer Goalie

Robert E. Spencer III

Blob Master

Dustin Greer

Hope Wall Climber

Matthew R. Zboyovski

Balloon Shaver

J.T. Alessi

Baseball Scorekeeper

Chris Snyder

Gerry's Double

Jonathan Clark

Camp Magnolia Girl

Aubrey Dollar

Camp Magnolia Girl

Mary Holt Fickes

Camp Magnolia Girl

Jamie Olson

Angelic Girl

Lauren Hill

Camp Magnolia Counselor

Lois Yaroshefsky

Kissing Girl

Landry M. Constantino

Gerry's School Buddy

Matthew Bradley King

Stewardess

Deena Dill

Man on Plane

Tom Kelley

Jack Gamer

Lars Clarke