Leavel will succeed Carolee Carmello in the role of Donna Sheridan beginning Sept. 22. That day will also mark the return of Gypsy Tony nominee John Dossett to the role of Sam Carmichael.

John Dossett recently starred in the world premiere of Giant at the Signature Theatre and will soon be seen in The First Wives Club at the Old Globe Theatre. Broadway credits include The Constant Wife, Democracy, Gypsy (Drama Desk and Tony Award nominations), Ragtime, Dinner at Eight and An Almost Holy Picture.

Beth Leavel was recently seen in the world premiere of Minsky's at the Ahmanson Theatre and as Lucille Early in the City Center Encores! production of No, No, Nanette. She received 2006 Tony, Drama Desk, Outer Critics Circle and Los Angeles Drama Critics Circle awards for her title role performance in The Drowsy Chaperone. Leavel has also appeared on Broadway in Young Frankenstein, 42nd Street (original and revival), The Civil War, Show Boat and Crazy for You.

Mamma Mia! employs the hit songs of famed pop group ABBA to tell the story of Sophie Sheridan, a young girl who hopes to discover the identity of her father. On the eve of her wedding, she brings three men from her mother Donna's past back to the Greek island they visited over two decades ago.

The New York cast of Mamma Mia! currently features Carolee Carmello (Donna Sheridan), Judy McLane (Tanya), Gina Ferrall (Rosie), Brandi Burkhardt (Sophie Sheridan), Chris Peluso (Sky), Sean Allan Krill (Sam Carmichael), Pearce Bunting (Bill Austin) and Ben Livingston (Harry Bright). Mamma Mia! features music and lyrics by Benny Andersson and Björn Ulvaeus, a book by Catherine Johnson, direction by Phyllida Lloyd and choreography by Anthony Van Laast.

Mamma Mia! became the 15th longest-running show in Broadway history June 27.

The Winter Garden Theatre is located in Manhattan at 1634 Broadway. For more information visit www.mamma-mia.com.