Spamalot offers the following major roles.
KING ARTHUR (G2-E4, Late 30s-60s.): The King of England who sets out on a quest to form the Knights of the Roundtable and find the Holy Grail. Great Humor. Good singer.
SIR ROBIN (C3-E4, 30s-40s): A Knight of the Roundtable. Ironically called 'Sir Robin the Brave,' though he couldn't be more cowardly. Joins the Knights for the singing and dancing.
SIR LANCELOT d/b/a LANCE (C3-E5, 30s-40): A Knight of the Roundtable. He is fearless to a bloody fault but through a twist of fate, does discover his 'softer side.'
PATSY (G2-F4, 30s-40s:) King Arthur's horse and servant. Under-appreciated but always longing for King Arthur's approval. Good, funny, physical mover with some tap dancing.
SIR GALAHAD (Bb2-B4, 30s): A Knight of the Roundtable. Begins as Dennis, a lower class 'mud gatherer' who becomes Knighted and transforms into the dashing Sir Galahad. Strong baritenor singing required.
SIR BEDEVERE (20s-40s): A Knight of the Roundtable. An inept scholar. No solo singing.
THE LADY OF THE LAKE (E4-B6, 20s-30s):A Diva. Strong, beautiful, possesses mystical powers. The leading lady of the show. Great singing voice is essential, as she must be able to sing effortlessly in many styles and vocal registers. Especially seeking actresses of all races for this role.
Spamalot also provides a menagerie of rich featured roles. We have the playwright's permission/encouragement to cross-gender cast many of these, and it's likely that ensemble members will play more than one.
LAKER GIRLS: a back-up group for the LADY OF THE LAKE. Described in a script note as "six scantily-clad ladies in fronds."
HISTORIAN: A tweedy academic.
MAYOR, a jolly red-faced man who advertises the merits of his home town.
BROTHER MAYNARD, a long-winded monk.
PRINCE HERBERT'S FATHER, a wealthy, brutish Yorkshireman man at odds with his sensitive son
THE BLACK KNIGHT who is always ready to duel despite multiple injuries.
THE FRENCH TAUNTER, an arrogant, condescending, over-the-top Frenchman.
DENNIS GALAHAD'S MOTHER, a shrill peasant woman.
CONCORDE, Sir Lancelot's horse.
The KNIGHT OF NI, an absurd, cartoonish leader of a peculiar group of Knights.
TIM THE ENCHANTER, a ghostly being with a Scottish accent.
NOT DEAD FRED: A sickly little fellow who, despite others' beliefs, claims he is "not yet dead."
FRENCH GUARD: The condemnatory French sidekick to the French Taunter.
MINSTREL: In Sir Robin's band.
PRINCE HERBERT: The hopeful and frilly prince who loves to sing and pines for his love atop a tower.
And, the ensemble has more roles -- Guards, Knights of Ni, Robin's Minstrels, Sir Not Appearing, and so on!