Hibbard will again step into the role of Patsy, succeeding recent star Drew Lachey. As previously announced, Sept. 16 also marks the arrival of Michael Siberry as King Arthur. Later in the week — on Sept. 19 — Clay Aiken returns to the cast of the Tony-winning musical as Sir Robin.

Hibbard and Siberry will join a company that features Tom Deckman, Rick Holmes, Bradley Dean, Robert Petkoff, Wally Dunn and Merle Dandridge.

David Hibbard's Broadway credits include Spamalot, Anything Goes, A Class Act, Once Upon a Mattress and Cats.

Australian native Michael Siberry, an alumnus of England's Royal Shakespeare Company, made his Broadway debut in the RSC's revival of The Life and Adventures of Nicholas Nickleby. His Broadway credits also include The Merchant of Venice, The Sound of Music and The Frogs.

Spamalot features a book and lyrics by Eric Idle, music by John Du Prez and Eric Idle, direction by Mike Nichols, choreography by Casey Nicholaw and is based on the screenplay of "Monty Python and the Holy Grail" by Monty Python creators Graham Chapman, John Cleese, Terry Gilliam, Eric Idle, Terry Jones and Michael Palin.

The musical tells the tale of King Arthur and his Knights of the Round Table on their quest from God for the Holy Grail — with a short stop in the dazzling Spam-filled land of Camelot.

Spamalot earned the 2005 Tony Award for Best Musical and took home honors for direction (Mike Nichols) and one of its stars (Sara Ramirez).

Spamalot celebrated its third anniversary on Broadway March 18.

On Broadway Spamalot plays Tuesday-Friday at 8 PM, Saturday at 2 and 8 PM and Sunday at 2 and 7 PM.

For more information visit www.montypythonsspamalot.com.