Ben Stiller as Reuben Feffer

Jennifer Aniston as Polly Prince

Philip Seymour Hoffman as Sandy Lyle

Debra Messing as Lisa Kramer

Alec Baldwin as Stan Indursky

Hank Azaria as Claude

Bryan Brown as Leland Van Lew

Jsu Garcia as Javier

Michele Lee as Vivian Feffer

Bob Dishy as Irving Feffer

Missi Pyle as Roxanne

Judah Friedlander as Dustin

Kevin Hart as Vic

Masi Oka as Wonsuk

Kym Whitley as Gladys

Amy Hohn as Cheryl

Nathan Dean as Mitch

Cheryl Hines as Catering Manager

Caroline Aaron as Wedding Coordinator

Christina Kirk as Party Hostess

Todd Stashwick as Security Officer

Robb Skyler as Basketball Player

Edward Conna as Basketball Player

Bruce Nozick as Executive Chef

Mark Adair-Rios as Cake Decorator

Michael Shamberg as Van Lew Executive

Nick Jameson as Van Lew Executive

Richard Willgrubs as AFLAC Executive

Ronald Hunter as Peanut Vendor

David Baron as Rabbi

James DuMont as Larry

Nicholas Benevento as Wedding Photographer

Jeff Ross as Wedding Band Leader

Mitch Silpa as JC Superstar Director

Robert M. Koch as Partygoer

Money Mark as Salsa Band Leader

Theodore Shapiro as Hector

Claudia Tenorio Gonzales as Salsa Singer

Carmit Bachar as Salsa Dancer

Marco De La Cruz as Salsa Dancer

Alison Faulk as Salsa Dancer

Tomasina Parrott as Salsa Dancer

Gustavo Vargas as Salsa Dancer

Allen Walls as Salsa Dancer

Rudy Zalez as Salsa Dancer

Paul Blazeak as Salsa Band

Richard Barron as Salsa Band

George Balmaseda as Salsa Band

Leslie Drayton as Salsa Band

Jose Espinosa as Salsa Band

Walter Miranda as Salsa Band

Alfredo Ortiz as Salsa Band

Phillip Ranelin as Salsa Band

Michael Wong as Salsa Band

Adrienne Ash as JC Superstar Singer

Christine Barger as JC Superstar Singer

Toni Blair as JC Superstar Singer

Eugenia Care as JC Superstar Singer

Mari Endo as JC Superstar Singer

Mike Fujimoto as JC Superstar Singer

Gustavo Hernandez as JC Superstar Singer

Monique Jongs as JC Superstar Singer

Anjulie Marriott as JC Superstar Singer

Jeffrey Sherrard as JC Superstar Singer

Ryan Cross as JC Superstar Band

Anthony King as JC Superstar Band

Vernon Neilly as JC Superstar Band

Stuart Silverstein as JC Superstar Band