John Cusack

Adam

Craig Robinson

Nick

Rob Corddry

Lou

Clark Duke

Jacob

Sebastian Stan

Blaine

Chevy Chase

Repairman

Crispin Glover

Phil

Lyndsy Fonseca

Jennie

Lizzy Caplan

April

Collette Wolfe

Kelly

William Zabka

Rick

Charlie McDermott

Chaz

Aliu Oyofo

Young Nick

Jake Rose

Young Adam

Brook Bennett

Young Lou

Yan-Kay Crystal Lowe

Zoe

Jessica Paré

Tara

Kellee Stewart

Courtney

Julia Maxwell

Lucy

Geoff Gustafson

Dr. Jeff

Austin Warren

Nick's Band Member

Adam Sabla

Nick's Band Member

Jocelyn C. Waugh

Nick's Band Member

Curtis Santiago

Nick's Band Member

Ryan Guldemond

Nick's Band Member

Jeremy Page

Nick's Band Member

Anthony Dallas

Nick's Band Member

Odessa Rojen

Young Courtney

Viv Leacock

Courtney's Dad

Jamie Switch

Massive Cell Phone Guy

Chad Garner

"Poison" Tribute Band - Unskinny Bop

Donald MacDonald

"Poison" Tribute Band - Unskinny Bop

Chad MacDonald

"Poison" Tribute Band - Unskinny Bop

Anthony Pagni

"Poison" Tribute Band - Unskinny Bop

Blaine Anderson

MC

Michael Roberds

Manager

Daren A. Herbert

Receptionist

Megan Holmes

'Where's the Beef' Girl

Ecstasia Sanders

Girl at Club

Eddie Ruttle

Beer Luge Guy

Heathcliffe Scaddan

Beer Luge Guy

Peter Wilson

Beer Luge Guy

Brent Lister

Blaine's Crony

Lars Anderson

Blaine's Crony

Paul Dzenkiw

Blaine's Crony

Rhys Williams

Blaine's Crony

Amy Esterle

Hot Tub Girl

Natalia Dawn

Hot Tub Girl

Ava Leemet

Candy Girl

Willy Lavendel

Fancy Ski Guy

Crystal Tisiga

Fancy Ski Girl

Marie West

Winterfest Bartender

Josh Heald

Manager

Lynda Boyd

Adam's Secretary (uncredited)

Jacob Blair

Gunnar (uncredited)

Rob LaBelle

Stewart (uncredited)

Robert Wu

Mr. Wang (uncredited)

Thomas Lennon

Customer (uncredited)

Diora Baird

Rick's Wife (uncredited)

Luke Ryan

Hot Tub Bear (uncredited)

Eli Jane

Hot Tub Girl (uncredited)

Amber Hay

Vince Neil's Video Girl (uncredited)

Cole Carson

Guy in Kodiak Restroom (uncredited)

Keith Roenke

Kodiak Club Guy (uncredited)

Adrienne Rusk

Kodiak Club Girl (uncredited)