Wopat will replace Christopher Sieber in the role of slick lawyer Billy Flynn on May 6 and will stay with the production through June 16. Sieber, who will head out to Los Angeles for the Reprise! mounting of Company, will play his final performance in Chicago May 2. The Chicago company currently stars Charlotte d'Amboise as Roxie Hart, Pia Douwes as Velma Kelly, P. J. Benjamin as Amos Hart, Roz Ryan as Matron "Mama" Morton and D. Sabella as Mary Sunshine.

Tom Wopat received a Tony nomination for his role as Frank Butler opposite Bernadette Peters in the Broadway revival of Annie Get Your Gun, and recently starred as Julian Marsh in the 42nd Street revival. His other theatrical credits include I Love My Wife, Carousel, City of Angels and Guys and Dolls. Perhaps best known for his seven-season run on "The Dukes of Hazzard," Wopat has also released several albums with CBS and Capitol Records.

Chicago won the Tony for Best Revival of a Musical in 1997 as well as awards for actors Bebe Neuwirth and James Naughton, director Walter Bobbie, lighting designer Ken Billington and choreographer Ann Reinking. The original production was directed and choreographed by the late Bob Fosse.

The Ambassador Theatre is located at 215 West 49th Street.