King Arthur / Voice of God / Middle Head / Hiccoughing Guard
Second Swallow-Savvy Guard / The Black Knight / Peasant 3 / Sir Launcelot the Brave / Taunting French Guard / Tim the Enchanter
Dead Collector / Peasant 1 / Sir Robin the Not-Quite-So-Brave-as-Sir Launcelot / First Swamp Castle Guard / Concorde / Roger the Shrubber / Brother Maynard
Patsy / Green Knight / Old Man from Scene 24 (Bridgekeeper) / Sir Bors / Animator / Gorilla Hand
Dennis's Mother / Sir Bedevere / Left Head / Prince Herbert / Voice of Cartoon Scribe
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!
The Witch
Zoot / Dingo
First Monk / Singing Minstrel / Page Crushed by the Rabbit / Peasant #4
Old Crone
Dead Body / Historian Frank
Historian's Wife
Dr. Piglet
Dr. Winston
Prisoner
Girl in Castle Anthrax
Knight of Ni / Villager at Witch Burning / Musician at Wedding / Monk / Knight in Battle
Musician at Wedding / Villager at Witch Burning
