Following the Jan. 20 performance of the long-running, Tony-winning revival of Kander and Ebb's Chicago at the Ambassador Theatre, the show's original Amos Hart, Tony winner Joel Grey, will take part in a discussion and question-and-answer session.

Chicago's Tony-winning director, Walter Bobbie, will moderate the Jan. 20 talkback with actor Grey.

(The Jan. 27 performance will be followed by a discussion with the show's current Roxie Hart, "Office" star Melora Hardin. Duncan Stewart, casting director for Chicago, will moderate the talkback with actress Hardin.)

The series, according to press notes, is designed to "provide theatregoers with an exclusive, behind-the-scenes glimpse into the world of Chicago."

Chicago currently features Melora Hardin as Roxie Hart, Brenda Braxton as Velma Kelly, Tom Hewitt as Billy Flynn, Scott Davidson as Amos Hart, Carol Woods as Matron "Mama" Morton and R. Lowe as Mary Sunshine.

Joel Grey was most recently on Broadway as the Wizard in the hit musical Wicked. He won a Tony Award for his role as the Emcee in the original Broadway production of Cabaret and later repeated the role on film to Oscar-winning effect. Grey's other theatrical credits include roles in Chicago, George M!, Goodtime Charley and The Grand Tour, receiving Tony nominations for all three productions. A Kennedy Center honoree, the actor is also a best-selling author; his book of photographs, "Pictures I Had to Take," is available from PowerHouse Books.

Tickets for the Jan. 20 "Talkback Tuesdays" performance are available by calling (212) 239-6200 or by visiting www.telecharge.com.

The Ambassador Theatre is located in Manhattan at 219 West 49th Street. Visit www.ChicagoTheMusical.com for more information.