Josh Zuckerman
Ian Lafferty

Amanda Crew
Felicia

Clark Duke
Lance

James Marsden
Rex Lafferty

Seth Green
Ezekiel

Alice Greczyn
Mary

Katrina Bowden
Ms. Tasty

Charlie McDermott
Andy

Mark L. Young
Randy

Cole Petersen
Dylan Lafferty

Dave Sheridan
Bobby Jo

Michael Cudlitz
Rick

Allison Weissman
Becca

Andrea Anders
Brandy

Kim Ostrenko
Mrs. Lafferty - Ian's Stepmom

Brett Rice
Mr. Lafferty - Ian's Dad

David Koechner
Hitchhiker

Caley Hayes
Sandy

Michele Simms
Drunk Amish Girl

John Ross Bowie
Dr. Clark Teddescoe

Keith Hudson
Angry Cop

Marianne Muellerleile
Grandma Prisoner

Jessica Just
Lindsay

Brian Posehn
Carney

Scott Klace
Lance's Dad

Allen Zwolle
Men's Room Predator

Cleo King
Abstinence Host

Ken Clement
Señor Donut Manager

Susie Abromeit
Cousin Tiffany

David Andrew Nash
Jail Cop

Giovanni Rodriguez
Thug Prisoner

Alan Lilly
Prisoner in Sports Jacket

Matthew Ramsey
Mall Prankster

Sasha Ramos
Kimberly

Rebecca Finer
Girl Entering Party

Drake Schirmer
Little Boy at Trailer Park

Dwayne Alexander Smith
Dwayne

Natalia Reagan
Pregnant Woman Prisoner

Kiki Harris
Female Cop

Darryll C. Scott
Angry Cop's Partner (as Darryll Scott)

Pete Wentz
Pete Wentz (Fall Out Boy)

Patrick Stump
Patrick Stump (Fall Out Boy)

Andy Hurley
Andy Hurley (Fall Out Boy)

Kyle Gass
Trucker