The cast of the Broadway-bound "Sondheim on Sondheim" has grown.
Tom Wopat will join co-stars Barbara Cook and Vanessa Williams in the Roundabout Theatre Company production, which takes a look at the composer through his music and through film and videotape interviews with him.
Roundabout artistic director Todd Haimes says the cast will also include Leslie Kritzer, Norm Lewis, Euan Morton and Matthew Scott.
"Sondheim on Sondheim," directed by James Lapine, opens April 22 at Studio 54. Previews begin March 19. It will be the second Sondheim musical on Broadway this season. A revival of "A Little Night Music" opens Sunday.
Wopat has numerous stage credits and two Tony nominations, but may best be known for playing Luke Duke in the TV series "The Dukes of Hazzard" three decades ago.