- Gregg Turkington - Special Agent Kington
- Gregg Turkington - Special Agent Jonathan Kington
- Gregg Turkington - Special Agent Jonathan Kington / Old Kington
- Mark Proksch - Abdul / Wolfman / Frankenstein / Bob Cratchit / Jacob Marley / Mummy / Charlie Chaplin / W-CPO
- Mark Proksch - Abdul
- Mark Proksch - The Wolfman / Frankenstein / The Mummy / Abdul
- Andrew Porter - Michael Victor
- Ayaka Ohwaki - President Davidson's Secretary
- Ayaka Ohwaki - Ayaka
- Cristy Joy - Stewardess
- Al Jardine - Dr. Richards
- Ernest Pierce - Front Desk Clerk
- David Schroeder - Doctor
- Simone Turkington - Advisor
- Corwin Allard - Young Jack Decker Jr.
- Joey Travolta - Judge Buchanan
- Corbin Timbrook - Fictional President Davidson
- Steve Railsback - Fictional General Cotter
- Jimmy McNichol - Son of Dracula
- Vinny DeGennaro - Trainer
- Vinny DeGennaro - Soldier #2
- Vinny DeGennaro - NYC Cab Driver
- Vinny DeGennaro - Soldier #1
- Mike Tarnofsky - Helicopter Pilot
- Ruben Roberto Gomez - Senator Sanchez
- Bobby Valli - Dr. Gary Reaper
- Bobby Valli - Zombie
- Vincent Riquier - Vinny
- Vincent Riquier - Vinny (uncredited)
- Eric Kaldor - Dr. Aswad
- Nick Brett - Trooper
- James Mane Jr. - Lanoi Arnold
- Michael C. Matthews - Roy St. Charlemagne Laroux
- January Welsh - Candy
- Zac Holtzman - Dr. Luther An
- Manuel Giusti - Manuel Giusti
- Manuel Giusti - Fictional Special Agent Kington
- Rizi Timane - UN Secretary General
- Rizi Timane - Chakka
- John Aprea - General Cotter
- Vaughn Armstrong - Dr. Peterson
- Mustafa Haidari - Arab Attacker
- Lindsay Seim - Maybellene
- Toni Sawyer - Aide
- David Marks - Self
- Carl Gottlieb - Self
- Alessandro Serradimigni - Axiom
- Dee Thompson - Captain Dee
- Don Swayze - General Coover
- Todd Rundgren - Ambassador Zultan (voice)
- Raghuram Shetty - International Panelist
- Marilyn Harris Smith - Mrs. Crane
- Eric Notarnicola
- Gregg Turkington
- Tim Heidecker
- Jonathan Roig
- Dave Kneebone
- Mark Costa
- Eric Wareheim
Joey Travolta interpreta a Judge Buchanan en la serie.
Mark Proksch interpreta a Abdul / Wolfman / Frankenstein / Bob Cratchit / Jacob Marley / Mummy / Charlie Chaplin / W-CPO en la serie.
Joe Estevez interpreta a President Davidson / President Davidson Jr. en la serie.
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