Tom McGowan as Pat

Aaron Schwartz as Gerry

Shaun Weiss as Josh

Tom Hodges as Lars

Leah Lail as Julie

Paul Feig as Tim

Kenan Thompson as Roy

David Bowe as Chris Donelly

Max Goldblatt as Phillip

Robert Zalkind as Simms

Patrick LaBrecque as Dawson

Jeffrey Tambor as Maury Garner

Jerry Stiller as Harvey Bushkin

Anne Meara as Alice Bushkin

Ben Stiller as Tony Perkis / Tony Perkis Sr.

David Goldman as Nicholas

Joseph Wayne Miller as Sam

Cody Burger as Cody

Allen Covert as Kenny

Tim Blake Nelson as Camp Hope Salesman

Nancy Ringham as Mrs. Garner

Seth St. Laurent as Camp MVP Racer

Bobby Fain as Camp MVP Pitcher

Robert E. Spencer III as Soccer Goalie

Dustin Greer as Blob Master

Matthew R. Zboyovski as Hope Wall Climber

J.T. Alessi as Balloon Shaver

Chris Snyder as Baseball Scorekeeper

Aubrey Dollar as Camp Magnolia Girl

Mary Holt Fickes as Camp Magnolia Girl

Jamie Olson as Camp Magnolia Girl

Lauren Hill as Angelic Girl

Landry M. Constantino as Kissing Girl

Lois Yaroshefsky as Camp Magnolia Counselor

Matthew Bradley King as Gerry's School Buddy

Deena Dill as Stewardess

Tom Kelley as Man on Plane

Lars Clark as Jack Garner

Judd Apatow as Homer