Bee Shaffer turns 22 today. Manhattan District Attorney Robert Morgenthau is turning 90. Billionaire financier Leon Black is 58. Harry Potter author J.K. Rowling is 44. Wesley Snipes is turning 47. Muckraking defense attorney Ron Kuby is 53. Another muckraker, entrepreneur Mark Cuban, is 51. Theater director Oskar Eustis turns 51. Ezra Zilkha is 84. The Office's B.J. Novak is 30. And actor Dean Cain is 43 today. Below, the birthdays of some people celebrating this weekend.

Hope mama got you something nice: Ms. Katherine E. Shaffer, better known as Bee, turns 21 today. Billionaire financier Leon Black is 57. Manhattan DA Robert Morgenthau is still going strong at 89. Defense attorney Ron Kuby turns 52. The Public's artistic director, Oskar Eustis, is 50. The Office's B.J. Novak is 29. Wesley Snipes is turning 46. Harry Potter scribe J.K. Rowling is 43. Actor Dean Cain is 42. Last but not least, banking heir (and father of socialite Bettina) Ezra Zilkha turns 83.

Page Six Magazine published a handy little charticle on some of the most powerful co-op boards in town and the board members who stand between you and that $20 million co-op.

The heir to a banking fortune and a prominent philanthropist, Ezra Zilkha is also the father of social fixture Bettina Zilkha.