The "Law & Order" and "Sex and the City" star will share the stage with James Frangione and Sean Nelson. Anders Cato directs. Dates are July 26-Aug. 13.

In other casting news, Randy Harrison of "Queer as Folk" will play tortured youth Alan Strange in Peter Shaffer's Equus, running July 12-23. Also in the cast are Roberta Maxwell as Hester, Victor Slezak as psychiatrist Martin Dysart and Pamela Payton-Wright. Scott Schwartz, the director of Bat Boy and Golda's Balcony, who has made the BTF his summer home in recent years, returns to helm the play. Schwartz's 2002 BTF production of Larry Shue's The Foreigner was popular there. He later staged the play Off-Broadway for Roundabout Theatre.

The Main Stage season gets underway June 21-July 9 with the popular Sondheim revue Side by Side by Sondheim, which will star Jessica Walter as The Narrator. Gary M. English directs the piece, which coincides with the 75th birth year of the composer.

The Main Stage season is completed by Souvenir, the two-hander about famed coloratura Florence Foster Jenkins, which recently played an extended run at the York Theatre Company. Judy Kaye will re-create her Off-Broadway performance. Vivian Matalon will direct the Aug. 17-Sept. 3 run.

The Unicorn Theatre season launched May 26 with Tom Jones and Harvey Schmidt's marital musical, I Do! I Do!. Directed by Sarah Gurfield, it runs until June 25. Strindberg's classic tragedy of familial and sexual paranoia, The Father, plays June 29-July 16, with Eric Hill, Lenka Peterson and David Adkins in the cast and direction by Anders Cato, who staged Miss Julie in 2002. Ron Hutchinson's Rat in the Skull, about an IRA terrorist and his interrogator, and starring Jonathan Epstein, follows July 20-Aug. 6, and French Contemporary Theatre, an evening of French and American contemporary stage work, runs Aug. 10-31. BTF is located in Stockbridge, MA. For information, call (413) 298-5536.