- Eddie Alfano
- Vinnie Carbonarra
- Jamie Anne Allman
- Candice Sauvigne
- Lucas Astrom
- Adam
- Bob Bancroft
- Allen Roane
- Jack Black
- Jack Black
- Mo Collins
- Deidra Fennigan
- Marshall Cook
- Nathan West
- Catherine DePrima
- Business Woman
- Andy Dick
- Danny Roane
- Jacob Dick
- Evan Wetzle
- Kevin P. Farley
- K.C.
- Kate Flannery
- Marla
- Derrel Furutani
- Japanese Auditioner
- John Garret
- Frank
- Charna Halpern
- Jewish Festival M.C.
- Scott Haze
- Rehab Patient
- Paul Henderson
- Paul Gunderson
- Michael Hitchcock
- John Imbagliado
- Jimmy Kimmel
- Jimmy Kimmel
- Dalton Leeb
- Rehab Patient
- Karen Loftus
- Mrs. Wetzel
- Madeline Long
- Susan Fritz
- Noli McCool
- Vicious Cycle
- Jonnas McDiffitt
- Patrick
- Jason Charles Miller
- Charles Brown
- Frankie Muniz
- Frankie Muniz
- Bob Odenkirk
- Pete Kesselmen
- Daniel Passer
- Asp / Hitler
- Anthony Rapp
- Anthony Rapp
- Sara Rue
- Charlotte Lewis
- Barry Saltzman
- Barry
- Tyler Sedustine
- Tyler Carmichael
- David Seiler
- Korean Auditioner
- Andrew Hunter Sherman
- Security Guard
- Jacob Stein
- Jewish Auditioner
- Ben Stiller
- Ben Stiller
- Crystal Stone
- Viscious Cycles Actress
- Erik Strom
- Caucasian Auditioner
- Allan Telias
- Cameraman
- Maura Tierney
- Maura Tierney
- Danny Trejo
- Hector
- James Van Der Beek
- Self
- Tim Walsh
- Tim
- Debra Wilson
- Rehab Nurse
- Jim Wise
- Animal Wrangler
- Rachel Zeskind
- Leslie
- Elana Blank
- Cast Beach Girl
- Sergio Kato
- Policeman
