Sinopsis
El rey Arturo y sus caballeros reciben un encargo divino: partir en búsqueda del Santo Grial, para lo cual deberán luchar contra enemigos muy diversos: malignos caballeros rivales, bestias sanguinarias (que solo son visibles como dibujo animado), groseros caballeros franceses fortificando un castillo en Inglaterra, brujas, adivinos mefistofélicos, Scotland Yard, y hasta un conejo asesino y carnívoro (que muere destruido por una cómica reliquia traída de las Cruzadas: la "Santa Granada de Mano de Antioquia").
Reparto
Graham Chapman — King Arthur / Voice of God / Middle Head / Hiccoughing GuardJohn Cleese — Second Swallow-Savvy Guard / The Black Knight / Peasant 3 / Sir Launcelot the Brave / Taunting French Guard / Tim the EnchanterEric Idle — Dead Collector / Peasant 1 / Sir Robin the Not-Quite-So-Brave-as-Sir Launcelot / First Swamp Castle Guard / Concorde / Roger the Shrubber / Brother MaynardTerry Gilliam — Patsy / Green Knight / Old Man from Scene 24 (Bridgekeeper) / Sir Bors / Animator / Gorilla HandTerry Jones — Dennis's Mother / Sir Bedevere / Left Head / Prince Herbert / Voice of Cartoon ScribeMichael Palin — First Swallow-Savvy Guard / Dennis / Peasant 2 / Right Head / Sir Galahad the Pure / Narrator / King of Swamp Castle / Brother Maynard's Brother / Leader of The Knights Who Say NI!Connie Booth — The WitchCarol Cleveland — Zoot / DingoNeil Innes — First Monk / Singing Minstrel / Page Crushed by the Rabbit / Peasant #4Bee Duffell — Old CroneJohn Young — Dead Body / Historian FrankRita Davies — Historian's WifeAvril Stewart — Dr. PigletSally Kinghorn — Dr. WinstonMark Zycon — PrisonerElspeth Cameron — Girl in Castle AnthraxMitsuko Forstater — Girl in Castle AnthraxSandy Johnson — Knight of Ni / Villager at Witch Burning / Musician at Wedding / Monk / Knight in BattleSandy Rose — Girl in Castle AnthraxRomilly Squire — Musician at Wedding / Villager at Witch BurningJoni Flynn — Girl in Castle AnthraxAlison Walker — Girl in Castle AnthraxLoraine Ward — Girl in Castle AnthraxAnna Lanski — Girl in Castle AnthraxSally Coombe — Girl in Castle AnthraxVivienne MacDonald — Girl in Castle AnthraxYvonne Dick — Girl in Castle AnthraxDaphne Darling — Girl in Castle AnthraxFiona Gordon — Girl in Castle AnthraxJudy Lamb — Girl in Castle AnthraxTracy Sneddon — Girl in Castle AnthraxJoyce Pollner — Girl in Castle AnthraxMary Allen — Girl in Castle AnthraxGloria Graham — Girl in Castle AnthraxSylvia Taylor — Girl in Castle AnthraxIain Banks — Knight in Battle (uncredited)Julian Doyle — Police Sergeant (uncredited)Margarita Doyle — Peasant (uncredited)Charles Knode — Camp Guard / Robin's Minstrel (uncredited)Zack Matalon — Guard who Falls into Barrels (uncredited)Scott Mike — Bash (Mudfighter (uncredited)William Palin — Sir Not-Appearing-in-this-Film (uncredited)Tom Raeburn — Guard Eating Apple (uncredited)Brian Ross — Biff (Mudfighter) (uncredited)Roy Forge Smith — Inspector End of Film (uncredited)Maggie Weston — Page-turner (uncredited)John Thornton — Dancing Knight (uncredited)