Jonah Hill as Seth

Michael Cera as Evan

Christopher Mintz-Plasse as Fogell

Bill Hader as Officer Slater

Seth Rogen as Officer Michaels

Martha MacIsaac as Becca

Emma Stone as Jules

Aviva Baumann as Nicola

Joe Lo Truglio as Francis the Driver

Kevin Corrigan as Mark

Clement Blake as Homeless Guy

Erica Vittina Phillips as Liquor Store Cashier

Joe Nuñez as Liquor Store Clerk

Dave Franco as Greg the Soccer Player

Marcella Lentz-Pope as Gaby

Scott Gerbacia as Jesse

Laura Seay as Shirley

Roger Iwami as Miroki

Clint Mabry as Prosthetic Leg Kid

Stacy Edwards as Evan's Mom

Mark Rogen as Father with Bat

Charlie Hartsock as Good Shopper Cashier

Dona Hardy as Old Lady

Charley Rossman as Good Shopper Security

Carla Gallo as Period Blood Girl

Ben Best as Quince Danbury

Jody Hill as Tut Long John Silver

Kevin Breznahan as Patrick Manchester

David Krumholtz as Benji Austin

Mousa Kraish as Billy Baybridge

Nicholas Jasenovec as Coffee Fairmount

Martin Starr as James Masselin

Keith Loneker as Wild Bill Cherry

Matthew McKane as Kane Cloverdale

Lauren Miller Rogen as Scarlett Brighton

Peter Salett as Tiger Greendragon

Rakefet Abergel as Muffin Selby

Brooke Dillman as Mrs. Hayworth

Michael Naughton as Gym Teacher

Steve Bannos as Math Teacher

Casey Margolis as Young Seth

Laura Marano as Young Becca

Matthew Bass as Vagtastic Voyager

Aurora Snow as Vagtastic Voyage Girl

Jenna Haze as Vagtastic Voyage Girl

Ted Haigh as Bartender

Michael Fennessey as Bus Driver

Brian Huskey as Elementary Principal

Clark Duke as Party Teenager

Stephen Borrello IV as Party Teenager

Naathan Phan as Party Teenager

Pamella D'Pella as Teacher

Danny McBride as Buddy at Party (uncredited)

Cortney Palm as Party Guest (uncredited)