Chase has withdrawn from the concert "due to scheduling conflicts with a television pilot," according to a release.

Gordon Greenberg (Jacques Brel..., Pirates of Penzance) will directs the presentation of Working Feb. 19 at The Zipper Theatre at 8 PM. Steve Marzullo serves as the music director.

Brown joins the previously announced Mary Testa (42nd Street and On the Town) and Celia Keenan-Bolger (Les Misérables, The 25th Annual Putnam County Spelling Bee) in the six-member cast that also includes Merle Dandridge (Tarzan), Ed Dixon (Les Misérables) and Roderick Hill (Butley).

The Zipper Theatre, Ryan Hill and John Johnson present the newly adapted concert version of the 1978 musical based on the Studs Terkel book about the multi-faceted American work force.

Brown appeared with Chase in the short-lived musical High Fidelity and in the Johnny Cash musical Ring of Fire. Other credits include I'm Not Rappaport, Aida, Bring Back Birdie and Cat on a Hot Tin Roof. Stephen Schwartz (Wicked) adapted the book for Working from the Terkel non-fiction work of the same name. The musical features songs by Schwartz, Craig Carnelia, Micki Grant, Mary Rodgers, Susan Birkenhead and James Taylor. The new concert version is adapted from the original by Greenberg.

The director will offer a Brechtian-style take on the musical. "I've always been a great fan of this show and wondered how we might expose the workings of the show itself — by featuring things like stage manager calls and the backstage crew doing their jobs — and by watching fewer actors play more characters," stated Greenberg. "Ultimately though, it's amazingly authentic and human."

The design team for Working will feature Jeff Croiter and Jeff Carnevale (lighting) and Peter Fitzgerald (sound).

Tickets ($55 and $30) are available through (212) 352-3101 or toll-free at (866) 811 4111. For more information visit actorsfund.org.