Janeane Garofalo

Beth

David Hyde Pierce

Henry

Michael Showalter

Coop / Alan Shemper

Marguerite Moreau

Katie

Paul Rudd

Andy

Zak Orth

J.J.

Christopher Meloni

Gene

A.D. Miles

Gary

Molly Shannon

Gail

Gideon Jacobs

Aaron

Ken Marino

Victor

Joe Lo Truglio

Neil

Michael Ian Black

McKinley

Liam Norton

Arty

Amy Poehler

Susie

Bradley Cooper

Ben

Marisa Ryan

Abby

Elizabeth Banks

Lindsay

Gabriel Millman

Caped Boy

Kevin Sussman

Steve

Kevin Thomas Conroy

Mork Guy

Christopher Cusumano

Medieval Kid

Cassidy Ladden

Mallrat Girl

Madeline Blue

Cure Girl

Nina Hellman

Nancy

Peter Salett

Guitar Dude

Judah Friedlander

Ron

Jacob Shoesmith Fox

Moose

Whitney Vance

Valerie

Benjamin Coppola

Bobby

H. Jon Benjamin

Can of Vegetables (voice)

Jake Fogelnest

Silas

Ian Helfer

Bear Claw Coach

Jordan MacLean

Alexa

Avi Setton

Standup Comic

Kyle Gallner

Bobby's Buddy

Kathleen Pandolfo

Godspell Girl

Zachary Montgomery-Wicks

Gail's Boy Camper

Danny Hopkins

Raft Camper #1

Christopher Connors

Raft Camper #2

Matt Carmeci

Bunk Boy

Stephen O'Brien

Juke Box Kid #1

Timothy Gasiewski

Juke Box Kid #2

Angel Berlane

Friends, Friends Girl #1

Christi Berlane

Friends, Friends Girl #2

Bob Walz

Drug Dealer

Joseph Kariuki

Kenyan Runner

Donna Mitchell

Gene's Wife

Joe Bryan

Counselor

Christine Loebsack

Counselor

Sandra Kennedy

Counselor

Dan Klein

Jeremy

Samm Levine

Arty (voice) (uncredited)

Keith Oney

Counselor

Joe James

Junkie Squatter (uncredited)