LPMA wrote:
Do we know how the mole is picked, ie a random draw or the producer's choice?
The Mole is picked by producers before the show begins, and likely brought on board as the Mole at some point during the casting process. I'm sure Bill goes into more detail in his book or something, but it's certainly not random.

I know the 2 celebrity moles were female and I think at least one of the regular moles was too? Correct me if I'm wrong.
Yup, of the four Moles we've had, three have been women. The first Mole, Kathryn, was the young, pretty chick of the season. Our second Mole, Bill, was the old, retired man of the season (actually, there were two, but he was the one with the military/navy/whatever background). Then, in the two celebrity seasons, both Moles were female models.