Marc Webb Director

Joseph Gordon-Levitt Tom Hansen

Zooey Deschanel Summer Finn

Geoffrey Arend McKenzie

Chloe Moretz Rachel Hansen

Matthew Gray Gubler Paul

Clark Gregg Vance

Patricia Belcher Millie

Rachel Boston Alison

Minka Kelly Autumn - Girl at interview

Charles Walker Millie's New Husband

Ian Reed Kesler Douche

Darryl Alan Reed Bus Driver

Valente Rodriguez Employee #1

Yvette Nicole Brown New Secretary

Nicole Vicius Partygoer

Natalie Boren Another Partygoer

Maile Flanagan Rhoda

Darryl Sivad Usher

Gregory Thompson Minister (as Gregory A. Thompson)

Michael Bodie Man

John Mackey Mime

Jacob Stroop Cupid

Kevin Michael Wedding Singer

Sid Wilner Grossman

Richard McGonagle Narrator (voice)

Jean-Paul Vignon French Narrator (voice)

Bryan Anthony Dancer

Sybil Azur Dancer

Cheryl Baxter Dancer

Gus Carr Dancer

John R. Corella Dancer (as John Corella)

Nadine Ellis Dancer

Alejandro Estornel Dancer

Nathaniel Flatt Dancer

Reshma Gajjar Dancer

Tiffany Granath Dancer

Jennifer Hamilton Dancer

Brandon Henschel Dancer

no image Michael Higgins Dancer

Kenneth Hughes Dancer

Lexy Hulme Dancer

no image John Jacquet Jr. Dancer

no image Jennifer Lee Keyes Dancer

Tim Lacatena Dancer

Rebecca Lin Dancer

Gelsey Weiss Dancer (as Gelsey Weiss Mahanes)

no image Katie Malia Dancer

no image Anthony Marciona Dancer

no image Christopher 'War' Martinez Dancer (as Christopher War Martinez)

Vivian Nixon Dancer

Tracy Phillips Dancer

Nathan Prevost Dancer

no image Jamie Shea Dancer

no image Ryan Thomas Dancer

Christian Vincent Dancer

Jull Weber Dancer

Olivia Howard Bagg Summer - Age 12 (uncredited)

Joshua Collins Co-Worker 3 (uncredited)

no image Danny J. Dolan Alto Sax Guy #1 (uncredited)

no image Adam Emery Tom - Age 12 (uncredited)

no image Taylor Feldman French Girl (uncredited)

Landall Goolsby Office Worker (uncredited)

Jennifer Hetrick Sarah (uncredited)

Janis Jones Greeting Card Company Employee (uncredited)

Michael Justice Rooftop Guy #1 (uncredited)

Kevin Leung Chinese Father (uncredited)

no image Michelle Mason The Most Beautiful Girl in the World (uncredited)

Kayla Gwyneth Morrisey Girl on the Stairs (uncredited)

no image Brigitte Ngo-Trinh Wedding Goer (uncredited)

Keisha Ramdhanie Wedding Guest (uncredited)

Eileen Reardon Summer Lookalike (uncredited)

Jason Robinson The Puma (uncredited)

Deborah Rombaut Coffee Addict (uncredited)

no image Justin Ruse Costume Character (uncredited)

Wesley J. Sabo Summer's Party Guest (uncredited)

Georja Umano French Lady (uncredited)

no image Pleasant Wayne Tavern Patron (uncredited)

Maurice Webster Wedding Guest (uncredited)

Kathryn Weisbeck Summer Lookalike (uncredited)

Leland White Wedding Guest (uncredited)

JonJon Wood Theatre Patron (uncredited)

Jon Morgan Woodward Wedding Guest (uncredited)