Sieber got his Tony nod for creating the role of Galahad (as well as The Black Knight and Prince Herbert's Father) in the Tony-winning musical Monty Python's Spamalot. He reprised his turn for the London production as well.
Sieber has also performed onstage in Into the Woods, Thoroughly Modern Millie, Triumph of Love, Chicago and Beauty and the Beast. He recently spent some time out of the knight's tunic to film the television pilot "Wildlife" for NBC.
The actor joins a cast that currently features Jonathan Hadary (as King Arthur), Marin Mazzie (The Lady of the Lake), Martin Moran (Sir Robin), Tom Deckman (Historian), Rick Holmes (Sir Lancelot), Jeffrey Kuhn (Sir Bedevere) and original castmate Michael McGrath (Patsy).
The ensemble also includes Brad Bradley, Thomas Cannizzaro, Kevin Covert, Jennifer Frankel, Napiera Groves, Amy Heggins, Jenny Hill, Emily Hsu, Beth Johnson, James Ludwig, Ariel Reid, Pamela Remler, Greg Reuter, Brian Shepard, Vanessa Sonon, Rick Spaans, Scott Taylor and Lee A. Wilkins.
* Mike Nichols ("The Graduate," "Angels in America") directed and Casey Nicholaw (The Drowsy Chaperone) choreographed the show inspired by the 1975 feature film comedy "Monty Python and the Holy Grail" which landed at Broadway's Shubert Theatre for a St. Valentine's Day (Feb. 14, 2005) start and a St. Patrick's Day (March 17) opening.
Spamalot 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.
The musical features a book by Eric Idle based on the screenplay he co-wrote with Monty Python creators Graham Chapman, John Cleese, Terry Gilliam, Terry Jones and Michael Palin. The new score — with music and lyrics by Idle and composer John Du Prez ("A Fish Called Wanda") — includes songs ("Brave Sir Robin" and "Knights of the Round Table") from the original film as well as Python signature "Always Look on the Bright Side of Life."
Spamalot took home prizes at the 2005 Tony Awards for Best Musical, Best Direction (Nichols) and Featured Actress (Sara Ramirez).
The show website can be found at www.montypythonsspamalot.com.