Richard 'Dick' Dix
Cassandra Menage
Captain Valentino Di Pasquale
Dr. Griffin Pratt
Dr. Uschi Künstler
Mr. President (as Damian Mason)
Lt. Bradford Shitzu (as Pierre)
Secretary Osgood
Police Chief Halverson
Yetta Pussel (as Verona Feldbusch)
Famous Tenor #1
Famous Tenor #2
Famous Tenor #3
Famous Tenor Voice #1 (voice)
Famous Tenor Voice #2 (voice)
Famous Tenor Voice #3 (voice)
Conductor
Security Gendarme
Mrs. President
Commander Wickernuts
Oona Hottenlocker-Wickernuts
Opera House Security Guard
Teenage Hostage
Spaceport Customs Officer
Backstage Gendarme
Ben Hur (gag credit)
Inspector Wazoo
Wardrobe Dresser
Pin Head Alien #1
Pin Head Alien #2
Flashback Doctor (as Charles Denis)
Flashback Mother
Opera reporter
Self (as Gandhi)
Sumo Wrestler #1
Sumo Wrestler #2
Theater Manager
Shuttle Flight Attendant
Female Prompter
Sax Musician
Alien Emcee
Converted Alien
Violinist
Vegan Night Club Singer
Vegan Night Club Singer (as Mickael Gravel)
Vegan Night Club Dancer (as Marianne Thérien)
Vegan Night Club Dancer
Vegan Night Club Dancer / Concert Dancer (as Rachel A. Jepersen)
Vegan Night Club Dancer / Concert Dancer
Concert Dancer (as Jean-Luke Côté)
Concert Dancer
Not In This Movie (gag credit)
Spaceport Passenger (uncredited)
Evil Alien (uncredited)
Sexy Alien Babe (uncredited)
Bloated Alien (uncredited)
Groucho Marx (uncredited)