- Lloyd Kaufman
- The Crap Keeper / Dad / Tromantis voice (as The Crap Keeper) (as Lloyd Kaufman)
- Julie Strain
- Ivanna Dance / Demanda
- James Gunn
- James Gunn
- Elizabeth Johnson
- James' Assistant
- Kevin Eastman
- Travis Dance
- Joel Himelhoch
- Chief Doublestump
- Elwood Carlisle
- Private Dick Sam Black
- Ronn Surels
- Deke The Red Herring
- Timothy Muskatell
- Guy who finds the space ship
- Josh Taylor
- Fake Zit Guy
- India Allen
- Sally Sterks - Heavy Set Tromaville Anchor
- Eli Roth
- Party Goer
- John Williamette
- Guy who gets ass fucked by buddy
- Antonia Dorian
- Larry the Stripper
- Gared Williams
- Bouncer
- Jason Sklar
- Jason Diaz (Action News Anchor #1)
- Randy Sklar
- Jason Gonzales (Action News Anchor #2)
- Isabelle Stephen
- Lesbian art student #1
- Kelli Powers
- Lesbian art student #2
- Jamie Greco
- Surly Crack - Head Trannie
- Joe Fleishaker
- Michael Herz / 500 Pound Candygramm
- James Ojala
- Monster Meat
- Adam Jahnke
- Purse Snatcher
- Paul Salamoff
- Office Chair Victim
- Rob Zazzali
- Timmy
- Jorge Garcia
- Racoon Head
- Masuimi Max
- Sexy Asian Vampire
- Ron Jeremy
- Jimmy
- Kevin Thigpen
- Black guy #2
- Trey Parker
- Steve Keen
- Ted Raimi
- Next Door Neighbor
- Debbie Rochon
- Zelda Lipschitz / Self
- New Found Glory
- New Found Glory
- Mark Gagliardi
- People at the Party
- Tamela
- People at the Party
- Trent Haaga
- People at the Party
- Ramzi Abed
- People at the Party
- Smokey Miles
- Party Goer
- Lizzy Strain
- Party Goer
- Doug Sakmann
- Party Goer
- James Lynch
- Party Goer
- Leroy Patterson
- Party Goer
- Phil Haney
- Party Goer
- Penny Folger
- People at the Party
- Paul Malcolm Pruett
- Party Goer
- Nicole Talley
- People at the Party
- Heather Darling
- People at the Party
- Lisa Michelle Axelrod
- Voice Over
- J.D. Brown
- Party goer
- Lenora Claire
- Party Goer
- Josi Kat
- Self
- Arban Ornelas
- Soul Stripper
- D.M. Schofield
- Lesbian Vampire
- Zafer Ulkucu
- People at the Party
- Albert Alvarez
- (uncredited)
- Chad Bernhard
- (uncredited)
- Stephen Blackehart
- Stephen Blackehart
- Crystal Cartwright
- Woman on Balcony
- Wes Craven
- Party Guest
- Gabriel Friedman
- Strip Bar Announcer / Larry / Deacon / Oliver Stone (voice) (uncredited)
- Marc Gras
- (uncredited)
- Edward Havens
- Party Announcer
- Chris Lanphear
- Sgt.Kabukiman / Rapist (voice) (uncredited)
- Sam Macaroni
- Mr. Freaky
- Terryn Westbrook
- Door Girl
