Didn't he thank his son for something not too long ago?
I seem to remember hear that.
Not Z. He said in an interview before he married Emma that he had no children and that they had no immediate plans. That was 5 years ago, and since this is her first, I'm going to go out on a limb and assume that he hasn't had another in the meantime.
Kronner, Jimmy, and Franzen have sons. There might be others that I'm forgetting, but the other ones that I remember offhand have daughters.