Matt McGrath

Character: Paul

Andy Fowle

Character: Grady

William H. Macy

Character: Mr. O'Day

John C. McGinley

Character: Groundskeeper

Julianne Phillips

Character: Justice Fitz

Will McCormack

Character: Todd

Robert Bella

Character: Pepe

Erik Jensen

Character: Dean

Mary McCormack

Character: Moira

Martha Plimpton

Character: Ann

Chris Bauer

Character: Tony Baby Shark

Kristen Johnston

Character: Stalker Fan

Marley Shelton

Character: Crying Fan

Josh Pais

Character: Cathartic Fan

Zosia Mamet

Character: Lost Fan

Ajax

Character: The Dog

Casper Andreas

Character: Mats(as Casper Andreasson)

Julie Auerbach

Character: Neck-brace Fan(as Julie Hess)

Craig Collington Bator

Character: Fan

Bret Bella

Character: Interviewer

Adam Bitterman

Character: Prediction Fan

Kate Blumberg

Character: Shining Star Fan

Brendan Bradley

Character: Unofficial Cover Band Fan #3

Patrick Breen

Character: Lonely Fan

Christopher Carley

Character: Lonely Fan

Erin Chandler

Character: Ditsy Fan

Harry Clein

Character: Jewish Music Fan

Ridley May Downs

Character: Immaculate Conception Baby

Sharon Raab Downs

Character: Immaculate Conception Fan(as Sophia Raab)

Timothy Durkin

Character: Fan

Matt Flanders

Character: Smoking Fan

Matt Flanders

Character: Unofficial Cover Band Member #1

Giada Hansen

Character: Shower Fan

George Hertzberg

Character: Married Hippy Fan #2

Nancy Hower

Character: Guitar Chick Fan

Antti Kaarlela

Character: Concert Announcer

Harry Jay Knowles

Character: Velvet Poster Fan

Jordan Lage

Character: The J-Man Fan

Paul Marcarelli

Character: Magical Fan #1

Mary B. McCann

Character: Bickering Wife Fan

Heather Oakley

Character: Dolphin Fan

Toni Pearen

Character: Pandemonium Fan

Lena Pepe

Character: Daughter of Bickering Fans

Neil Pepe

Character: Bickering Husband Fan

Jenni Pulos

Character: Loving Fan

Olivia Rosewood

Character: Toy Piano Fan

Reed Ruby

Character: Fan

Mark Schwahn

Character: Venice Beach Fan

Cynthia Silver

Character: Magical Fan #2

Mark Souza

Character: Unofficial Cover Band Fan #2

Krista Tucker

Character: Married Hippy Fan #1

Paul Urcioli

Character: Vics and Tims Fan

Todd Weeks

Character: Toilet Fan

Ali Humiston

Character: Teddy Bear Fan(uncredited)

Marc Opitz

Character: Fan(uncredited)