Joseph Gordon-Levitt

Tom

Matthew Gray Gubler

Paul

Zooey Deschanel

Summer

Maile Flanagan

Rhoda

Chloë Grace Moretz

Rachel

Yvette Nicole Brown

New Secretary

Clark Gregg

Vance

Valente Rodriguez

Employee #1

Geoffrey Arend

McKenzie

Marc Webb

Director

Patricia Belcher

Millie

Minka Kelly

Autumn

Rachel Boston

Alison

Charles Walker

Millie's New Husband

Ian Reed Kesler

Douche

Darryl Alan Reed

Bus Driver

Nicole Vicius

Partygoer

Natalie Boren

Another Partygoer

Darryl Sivad

Usher

Gregory A. Thompson

Minister

Michael Bodie

Man

John Mackie

Mime

Jacob Stroop

Cupid

Kevin Michael

Wedding Singer

Sid Wilner

Grossman

Michael H. Weber

Writer

Scott Neustadter

Writer