Stars (in credits order)
Andrea Savage
Self
Jared Padalecki
Kevin Smith
Keith David
Jane Seymour
Gary Cole
Melissa Joan Hart
Diedrich Bader
John O'Hurley
Willie Garson
Hulk Hogan
Jason Mewes
Jay
Sebastian Bach
Blair Underwood
Kylie Minogue
Mindy Sterling
Alfonso Ribeiro
Jeremy London
Jack Wagner
Michael Bublé
Dave Navarro
Macy Gray
Vonda Shepard
Bret Michaels
Scott Stapp
Molly Culver
Jason Mraz
Shannon Sharpe
Liz Phair
Art Alexakis
Bob Guiney
Barenaked Ladies
Themselves
Maroon 5
Michael Colton
Self - Panelist
Spin Doctors
John Ondrasik
Wendy Kaufman
Kevin Baldes
The Modern Humorist
Scott Ian
Ian Scott
Jerry Springer
Michael Bolton
M.C. Hammer
Beth Littleford
Michael Ian Black
A.J. Langer
Hal Sparks
Mo Rocca
Loni Love
Bil Dwyer
Dominic Monaghan
Brian Posehn
Dee Snider
JC Chasez
Self (as JC Chasez)
Godfrey
Stuart Scott
Rich Eisen
Edwin McCain
Jake Fogelnest
Joel Stein
Rachael Harris
Bobby Lee
Trey Parker
Craig Ferguson
Jenna von Oÿ
Walter Jones
Coolio
John Mayer
Hanson
Sir Mix A Lot
Rachel Quaintance
Kyan Douglas
Darryl McDaniels
Simon Doonan
Chris Booker
Jamal Anderson
Amy Jo Johnson
Chris Pratt
Self - Interviewee
Lacey Chabert
Rachel Bilson
Missi Pyle
Megyn Price
Kerr Smith
Luis Guzmán
Greg Grunberg
Jaleel White
Ice-T
Chris Jericho
Billy West
Kellie Shanygne Williams
Erin Daniels
Usher
Lance Bass
Adam Levine
Cindy Margolis
David Lee Roth
Patrice O'Neal
Joey McIntyre
Brian Unger
Jordan Knight
Tom Morello
Taylor Hanson
Jerry Cantrell
Zac Hanson
Isaac Hanson
Stephen Lynch
Doug E. Fresh
Jane's Addiction
John Aboud
Self (as The Modern Humorist)
Aaron Karo
Brad Roberts
Michele L. Jennings
Mc Hammer Dancer
Tony Woods
Kevin Powell
DJ Skribble
Christopher J. Smith
Steven Scott
Kellie Williams
Steven Lynch
Neve Campbell
(archiveFootage)
Josie Bissett
Jane Mancini(archiveFootage)
Courtney Thorne-Smith
Allison Parker(archiveFootage)
Daphne Zuniga
Peri Gilpin
Christine Elise
Constance Marie
Marcia Cross
Dr. Kimberly Shaw(archiveFootage)
Mykelti Williamson
Gillian Vigman
Doug Savant
Matt(archiveFootage)
James Michael Tyler
Gabrielle Carteris
Mario Van Peebles
Kevin Weisman
Ian Ziering
Antonio Sabato Jr.
Thomas Calabro
Andrew Shue
Billy Campbell(archiveFootage)
Colin Mochrie
Carlos Alazraqui
Joe E. Tata
Amanda Foreman
Sarah McLachlan
Chris Pontius
Kato Kaelin
John Kricfalusi
Faith Salie
Tom Papa
Brian Palermo
Missy Elliott
Greg Fitzsimmons
Venus Williams
Ruth Westheimer
Susan Powter
Eric Nies
Mystro Clark
Heidi Strobel
Robert Randolph
Vin Rock
A. Jay Popoff
Petros Papadakis
Jeremy Popoff
Jaime Gleicher
Allen Shellenberger
Terrell Davis