John Neville
Role: Hieronymus Karl Frederick Baron von Munchausen
Eric Idle
Role: Desmond / Berthold
Sarah Polley
Role: Sally Salt
Charles McKeown
Role: Rupert / Adolphus
Winston Dennis
Role: Bill / Albrecht
Jack Purvis
Role: Jeremy / Gustavus
Valentina Cortese
Role: Queen Ariadne / Violet
Jonathan Pryce
Role: The Right Ordinary Horatio Jackson
Bill Paterson
Role: Henry Salt
Peter Jeffrey
Role: Sultan
Uma Thurman
Role: Venus / Rose
Alison Steadman
Role: Daisy
Ray Cooper
Role: Functionary
Don Henderson
Role: Commander
Robin Williams
Role: King of the Moon
Sting
Role: Heroic Officer
Andrew MacLachlan
Role: Colonel
José Lifante
Role: Dr. Death
Mohamed Badrsalem
Role: Executioner
Kiran Shah
Role: Executioner's Assistant
Franco Adducci
Role: Treasurer
Ettore Martini
Role: First General
Antonio Pistillo
Role: Second General
Michael Polley
Role: Gunner
Laura Lieblein Adam
Role: Theatergoer (uncredited)
Calogero Azzaretto
Role: Pirate (uncredited)
Angelo Casadei
Role: Citizen (uncredited)
Martin Dansky
Role: German Noble (uncredited)
Terry Gilliam
Role: Irritating Singer Inside Fish (uncredited)
Alba Maiolini
Role: Citizen (uncredited)
Franca Scagnetti
Role: Citizen (uncredited)
Luciano Zanussi
Role: Citizen (uncredited)