The actress won a Tony Award playing the Swedish Ulla, the secretary and comely wannabe actress who falls in love with Leo Bloom in the Mel Brooks musical.
Huffman is being replaced Aug. 5 by Sarah Cornell, the "Ulla" of the upcoming Toronto production. She will stay with the Broadway company for three months, then join Toronto when it opens, a spokesman said.
Cornell is a twentysomething unknown who is joining Equity (Canadian and American) for the first time for The Producers.
Huffman was nominated for a Tony for Best Featured Actress in a Musical for playing Ziegfeld's favorite in The Will Rogers Follies: A Life in Revue.
Gary Beach, who won a Tony playing Roger DeBris on Broadway, will return to the St. James Theatre in September after his contract in the Los Angeles production of The Producers is up.
For information, visit www.producersonbroadway.com.