- Seann William Scott
- E.L.
- Breckin Meyer
- Josh Porter
- DJ Qualls
- Kyle Edwards
- Fred Ward
- Earl Edwards
- Andy Dick
- Motel Clerk
- Rachel Blanchard
- Tiffany Henderson
- Bobby Place
- Tour Group Member
- Jessica Cauffiel
- Tiffany Henderson of Boston
- Frank Girardeau
- Tour Group Member
- Tom Green
- Barry Manilow
- Rhoda Griffis
- Tour Group Mom
- Wendell B. Harris Jr.
- Professor Anderson
- Rachel Marinacci
- Tour Group Member
- Richard Peterson
- Michael
- Anthony Rapp
- Jacob
- Amy Smart
- Beth
- Ethan Suplee
- Ed
- Daniel Emery Taylor
- Tour Group Member
- Al Wiggins
- Tour Group Member
- Paulo Costanzo
- Rubin
- Horatio Sanz
- French Toast Guy
- Marla Sucharetza
- Sperm Bank Nurse
- Ellen Albertini Dow
- Grandma Manilow
- Edmund Lyndeck
- Jack Manilow
- Mary Lynn Rajskub
- Blind Brenda
- Honorine Bell
- Carla
- Jimmy Kimmel
- Corky the Dog
- Todd Phillips
- Writer, Director
- Scot Armstrong
- Writer
- Daniel Goldberg
- Producer
- Joe Medjuck
- Producer
- Tom Pollock
- Executive Producer
- Ivan Reitman
- Executive Producer
- Steven Spielberg
- Executive Producer
- Mark Irwin
- Cinematographer
- Sheldon Kahn
- Film Editing
- Michael Simpson
- Original Music
- Clark Hunter
- Production Design
- Max Biscoe
- Art Director
- Traci Kirshbaum
- Set Decoration
- Peggy Stamper
- Costume Design
- Ann Goulder
- Casting
- Nancy Nayor
- Casting
- Michael Neuman
- First Assistant Director
- Tony Kupersmith
- Construction Coordinator
- Robin O'Brien
- Construction Coordinator
- Gary C. Bourgeois
- Sound Re-Recording Mixer
- Cameron Frankley
- Supervising Sound Editor
- Greg Orloff
- Sound Re-Recording Mixer
- Jonathon "Earl" Stein
- Production Sound Mixer
