Leslie Nielsen
Marshal Richard "Dick" Dix
Ophélie Winter
Cassandra Menage
Ezio Greggio
Captain Valentino Di Pasquale
Peter Egan
Dr. Griffin Pratt
Alexandra Kamp
Dr. Uschi Künstler
Damien Masson
President Bill Clinton
Pierre Edwards
Lieutenant Bradford Shitzu
David Fox
Secretary Osgood
Sam Stone
Police Chief Halverson
Verona Pooth
Yetta Pussel
Michel Perron
Famous Tenor
Paul Rainville
Famous Tenor
Yvan Ducharme
Famous Tenor
Marc Hervieux
Famous Tenor (voice)
Perry Canestrari
Famous Tenor (voice)
Carlos Ruiz
Famous Tenor (voice)
Tommy Schnurmacher
Conductor
Alan Shearman
Security Gendarme
Teresa Barnwell
Hilary Clinton
David Francis
Commander Wickernuts
Una Kay
Oona Hottenlocker-Wickernuts
Michele Scarabelli
Opera House Security Guard
Mark Stevens
Teenage Hostage
Ellen David
Spaceport Customs Officer
Armand Laroche
Backstage Gendarme
Pierre Lenoir
Inspector Wazoo
Richard Jutras
Wardrobe Dresser
David Millbern
Pin Head Alien
Matthew Smiley
Pin Head Alien
Charles Dennis
Flashback Doctor
Natalie Gray
Flashback Mother
Betsy Soo
Opera Reporter
Robert Suetsugu
Sumo Wrestler
Reid Asato
Sumo Wrestler
Luc Campeau
Theater Manager
Stéphanie Dumoulin-Shaw
Shuttle Flight Attendant
Annabelle Torsein
Female Prompter
Charles Papasoff
Sax Musician
Jean-Marc Bisson
Alien Emcee
Alain Bérard
Converted Alien
Caroline André
Violinist
Toni Sherwood
Vegan Night Club Singer
Mikael Gravel
Vegan Night Club Singer
Marianne Farley
Vegan Night Club Dancer
Daniel Alvarez
Vegan Night Club Dancer
Rachel A. Jeperson
Vegan Night Club Dancer / Concert Dancer
Christian Vézina
Vegan Night Club Dancer
Marion Hinz
Vegan Night Club Dancer / Concert Dancer
Noam Alon
Vegan Night Club Dancer
Martin Samuel
Vegan Night Club Dancer
Jean-Luc Côté
Concert Dancer
Don Jordan
Concert Dancer
Cindy Davis
Spaceport Passenger (uncredited)
Peter Hawkins
Evil Alien (uncredited)
Line Pelletier
Sexy Alien Babe (uncredited)
Mike Tsar
Bloated Alien (uncredited)
Jeffrey Weissman
Groucho Marx (uncredited)