| Character | Actor |
| King Arthur | |
| Patsy | |
| First Swallow-Savvy Guard | |
| Second Swallow-Savvy Guard | |
| The Dead Collector | |
| Man with 'Dead' Body | |
| 'Dead' Man | |
| Dennis | |
| Dennis's Mother | |
| Green Knight | |
| The Black Knight | |
| Sir Bedevere | |
| The Witch | |
| First Villager (Well, we did do the nose) | |
| Second Villager (Wood!) | |
| Third Villager (She turned me into a newt!) | |
| Narrator | |
| Sir Lancelot | |
| Sir Galahad | |
| Sir Robin | |
| God | |
| | Character | Actor |
| French Guard | |
| Historian | |
| Singing Minstrel | |
| Left Head (I think kill him.) | |
| Middle Head (You snore.) | |
| Right Head (Oh, cut your own head off!) | |
| Zoot | |
| Dingo | |
| Old Man from Scene 24 | |
| Leader of the Knights Who Say 'Ni!' | |
| King of Swamp Castle | |
| Prince Herbert | |
| Confused Swamp Castle Guard | |
| Hiccoughing Swamp Castle Guard | |
| Concorde | |
| Roger the Shrubber | |
| Tim the Enchanter | |
| Brother Maynard | |
| Brother Maynard's Brother | |
| Animator | |
| Bridgekeeper | |
|