Drew Barrymore

Character: Sophie Fisher

Hugh Grant

Character: Alex Fletcher

Brad Garrett

Character: Chris Riley

Haley Bennett

Character: Cora Corman

Brooke Tansley

Character: Janice Stern

Aasif Mandvi

Character: Khan

Zak Orth

Character: David Newbert

Scott Porter

Character: Colin Thompson

Nick Bacon

Character: Pop Bass Player

Andrew Wyatt

Character: Pop Guitar Player

Dan McMillan

Character: Pop Drummer

Tom Foligno

Character: Has-Beens Promo Announcer (voice)

Daniel Stewart Sherman

Character: Willy

Matthew Morrison

Character: Ray

Jason Antoon

Character: Greg Antonsky

Jeremy Karson

Character: Charlie

Emma Lesser

Character: Lucy

Kristen Johnston

Character: Rhonda

Adam Grupper

Character: Gary

Charlotte Maier

Character: Barbara

Lanette Ware

Character: Mia

Campbell Scott

Character: Sloan Cates

Billy Griffith

Character: Derek

Kathleen McNenny

Character: Gloria

Stevie Ray Dallimore

Character: Maitre d'

Spenser Leigh

Character: Beth Riley

Lou Torres

Character: Security Guard

Kali R. Harrison

Character: Stage Manager

Dan Karaty

Character: Choreographer

Chris Moss

Character: Dancer

Christine Ashley DeJesus

Character: Dancer

Dana DePalo

Character: Dancer

Gerard Heintz

Character: Dancer

Antoine 'Doc' Judkins

Character: Dancer

Nick Kenkel

Character: Dancer

Nina Lafarga

Character: Dancer

Carly Lang

Character: Dancer

Monique Lea-Gall

Character: Dancer

Sarah Mitchell

Character: Dancer

Marielys Molina

Character: Dancer

Jorge Santos

Character: Dancer

Seth Stewart

Character: Dancer

Roel Suasin

Character: Dancer

Reed Kelly

Character: Dancer

Ariana Bernstein

Character: Girl at Concert (uncredited)

Bill Chemerka

Character: Concert Vendor (uncredited)

Michael Ciesla

Character: Party Guest (uncredited)

Peter Conboy

Character: Reunion Classmate (uncredited)

Jeannine Kaspar

Character: Girlfriend of Alex Fletcher (uncredited)

Mark A. Keeton

Character: Sloan's Dinner Companion (uncredited)

Bernadette Lords

Character: Cora Corman Fan (uncredited)

Suzi Lorraine

Character: Nurse (uncredited)

Robert Sciglimpaglia

Character: Reunion Classmate (uncredited)

Carlos Velazquez

Character: Waiter (uncredited)

Toni Trucks

Character: Tricia