John Cusack

Character: Adam

Craig Robinson

Character: Nick

Rob Corddry

Character: Lou

Clark Duke

Character: Jacob

Sebastian Stan

Character: Blaine

Chevy Chase

Character: Repairman

Crispin Glover

Character: Phil

Lyndsy Fonseca

Character: Jennie

Lizzy Caplan

Character: April

Collette Wolfe

Character: Kelly

William Zabka

Character: Rick

Charlie McDermott

Character: Chaz

Aliu Oyofo

Character: Young Nick

Jake Rose

Character: Young Adam

Brook Bennett

Character: Young Lou

Yan-Kay Crystal Lowe

Character: Zoe

Jessica Paré

Character: Tara

Kellee Stewart

Character: Courtney

Julia Maxwell

Character: Lucy

Geoff Gustafson

Character: Dr. Jeff

Austin Warren

Character: Nick's Band Member

Adam Sabla

Character: Nick's Band Member

Jocelyn C. Waugh

Character: Nick's Band Member

Curtis Santiago

Character: Nick's Band Member

Ryan Guldemond

Character: Nick's Band Member

Jeremy Page

Character: Nick's Band Member

Anthony Dallas

Character: Nick's Band Member

Odessa Rojen

Character: Young Courtney

Viv Leacock

Character: Courtney's Dad

Jamie Switch

Character: Massive Cell Phone Guy

Chad Garner

Character: "Poison" Tribute Band - Unskinny Bop

Donald MacDonald

Character: "Poison" Tribute Band - Unskinny Bop

Chad MacDonald

Character: "Poison" Tribute Band - Unskinny Bop

Anthony Pagni

Character: "Poison" Tribute Band - Unskinny Bop

Blaine Anderson

Character: MC

Michael Roberds

Character: Manager

Daren A. Herbert

Character: Receptionist

Megan Holmes

Character: 'Where's the Beef' Girl

Ecstasia Sanders

Character: Girl at Club

Eddie Ruttle

Character: Beer Luge Guy

Heathcliffe Scaddan

Character: Beer Luge Guy

Peter Wilson

Character: Beer Luge Guy

Brent Lister

Character: Blaine's Crony

Lars Anderson

Character: Blaine's Crony

Paul Dzenkiw

Character: Blaine's Crony

Rhys Williams

Character: Blaine's Crony

Amy Esterle

Character: Hot Tub Girl

Natalia Dawn

Character: Hot Tub Girl

Ava Leemet

Character: Candy Girl

Willy Lavendel

Character: Fancy Ski Guy

Crystal Tisiga

Character: Fancy Ski Girl

Marie West

Character: Winterfest Bartender

Josh Heald

Character: Manager

Lynda Boyd

Character: Adam's Secretary (uncredited)

Jacob Blair

Character: Gunnar (uncredited)

Rob LaBelle

Character: Stewart (uncredited)

Robert Wu

Character: Mr. Wang (uncredited)

Thomas Lennon

Character: Customer (uncredited)

Diora Baird

Character: Rick's Wife (uncredited)

Luke Ryan

Character: Hot Tub Bear (uncredited)

Eli Jane

Character: Hot Tub Girl (uncredited)

Amber Hay

Character: Vince Neil's Video Girl (uncredited)

Cole Carson

Character: Guy in Kodiak Restroom (uncredited)

Keith Roenke

Character: Kodiak Club Guy (uncredited)

Adrienne Rusk

Character: Kodiak Club Girl (uncredited)