Further principal casting was announced Feb. 1 for the in-rep stagings of six Stephen Sondheim musicals at the Kennedy Center this summer, and audiences can expect Broadway's John Barrowman as Bobby, Judy Kuhn as Fosca, Raul Esparza as George, Melissa Errico as Dot and Barbara Bryne as Madame Armfeldt, plus more surprises. The Kennedy Center's Sondheim Celebration, an unprecedented festival of works devoted to one American musical theatre composer, offers Company, A Little Night Music, Sunday in the Park with George, Passion, Sweeney Todd and Merrily We Roll Along. The series begins May 10 with the first performance of Sweeney Todd. The previously announced stars of Sweeney are Christine Baranski and Brian Stokes Mitchell. Individual tickets go on sale Feb. 11.

Also announced for the shows are Christy Baron (Susan in Company), Matt Bogart (Paul in company), Natascia Diaz (Petra in A Little Night Music), Esapraza (as Charley in Merrily We Roll Along, as well at the title role in Sunday in the Park With George), Danny Gurwin (Henrik in A Little Night Music), Rebecca Luker (Clara in Passion), Michael McGrath (Joe in Merrily We Roll Along), Donna Migliaccio (the Nurse in Sunday in the Park With George), Keira Naughton (Sarah in Company), Alice Ripley (Amy in Company), Miriam Shor (Mary in Merrily We Roll Along), Emily Skinner (Jenny in Company) and Gussie in Merrily We Roll Along).

Eric Schaeffer serves as artistic director for the festival, Kay Cameron is musical director, Max Woodward is producer. Single tickets range $20-$79. For information, call (202) 467 4600.