Diggs will co-write, co-produce, and co-star with Rafael Casal; fellow Hamilton alum Jasmine Cephas Jones is also on board.

The summer lull is anything but in the London theatre scenes. For starters, Kevin Spacey is Richard III and Kristin Scott Thomas stars in Harold Pinter's Betrayal.

The summer lull is anything but in the London theatre scenes. For starters, Kevin Spacey is Richard III and Kristin Scott Thomas stars in Harold Pinter's Betrayal.

The Playwrights Realm and the Graduate Musical Theatre Writing Program at NYU's Tisch School of the Arts will present the 2009 Writers' Jam Session, a week of public and private readings by emerging artists July 23-30.

Alan Cumming's "Mack the Knife" will have more time to kill as the Roundabout Theatre Company revival of The Threepenny Opera with Cyndi Lauper, Ana Gasteyer, Nellie McKay and Jim Dale extends on Broadway through June 25.

Alan Cumming returns to Broadway as "Mack the Knife" opposite Cyndi Lauper, Ana Gasteyer, Nellie McKay and Jim Dale in the Roundabout Theatre Company revival of The Threepenny Opera which opens April 20.

"Mack the Knife" is back on Broadway as Alan Cumming, Cyndi Lauper, Ana Gasteyer, Nellie McKay and Jim Dale star in the Roundabout Theatre Company revival of The Threepenny Opera.

Casting is complete for the upcoming Roundabout Theatre Company production of The Threepenny Opera with Alan Cumming, Cyndi Lauper, Ana Gasteyer, Nellie McKay and Jim Dale.

What's announced and what's in previews in the West End.

NELL CARTER
It was during a performance with The San Francisco Gay Men's Chorus that the exuberant singing actress Nell Carter decided that the concert should be recorded, sold, and all proceeds should go directly to the Chorus' Financial Assistant Network Club (FAN Club). One problem. The show had not been set up for a professional live recording. Thankfully, however, the show was being taped for the company's archives, and that recording -- in good enough condition for release and featuring Carter's glorious performance -- is now available on compact disc.

NELL CARTER
It was during a performance with The San Francisco Gay Men's Chorus that the exuberant singing actress Nell Carter decided that the concert should be recorded, sold, and all proceeds should go directly to the Chorus' Financial Assistant Network Club (FAN Club). One problem. The show had not been set up for a professional live recording. Thankfully, however, the show was being taped for the company's archives, and that recording -- in good enough condition for release and featuring Carter's glorious performance -- is now available on compact disc.

Hello, diva lovers. I'd like to dedicate today's column to one of the most gifted comedic actresses of her time, Madeline Kahn, who lost her battle with ovarian cancer last week. Kahn, who received a Tony Award for her riotous portrayal of Dr. Gorgeous Teitelbaum in Wendy Wasserstein's The Sisters Rosensweig, was equally at home on the stage or on screen, earning Tony nominations for her work in In the Boom Boom Room, On the Twentieth Century and Born Yesterday while meriting Academy Award nominations for such screen roles as "Blazing Saddles" and "Paper Moon." Though difficult to choose from her eclectic array of characters, I think my favorite Kahn performance was in the aforementioned "Paper Moon" as the good-bone-structured Trixie Delight, opposite the father-and-daughter team of Ryan and Tatum O'Neill. The operatically-trained performer had the ability to make you laugh with a simple inflection of the voice, and she could also move you in both song and the spoken word. This unique, multi-talented actress will be much missed. In lieu of flowers, Kahn's family asks that donations be made to the Ovarian Cancer Research Fund (One Penn Plaza, Suite 1610, New York, NY 10001).

Hello, diva lovers. I'd like to dedicate today's column to one of the most gifted comedic actresses of her time, Madeline Kahn, who lost her battle with ovarian cancer last week. Kahn, who received a Tony Award for her riotous portrayal of Dr. Gorgeous Teitelbaum in Wendy Wasserstein's The Sisters Rosensweig, was equally at home on the stage or on screen, earning Tony nominations for her work in In the Boom Boom Room, On the Twentieth Century and Born Yesterday while meriting Academy Award nominations for such screen roles as "Blazing Saddles" and "Paper Moon." Though difficult to choose from her eclectic array of characters, I think my favorite Kahn performance was in the aforementioned "Paper Moon" as the good-bone-structured Trixie Delight, opposite the father-and-daughter team of Ryan and Tatum O'Neill. The operatically-trained performer had the ability to make you laugh with a simple inflection of the voice, and she could also move you in both song and the spoken word. This unique, multi-talented actress will be much missed. In lieu of flowers, Kahn's family asks that donations be made to the Ovarian Cancer Research Fund (One Penn Plaza, Suite 1610, New York, NY 10001).