Casting continues apace for NBC's legal drama pilot, 'Rex is Not Your Lawyer.'

It's already been announced that David Tennant of 'Doctor Who' fame will be making his American television debut as Rex Alexander, a Chicago lawyer who begins suffering from panic attacks and attempts to compensate by coaching his clients to represent themselves. The role was apparently very difficult to cast, with NBC searching for a leading man for several months until Tennant came in and nailed it.

Now The Hollywood Reporter reports that Abigail Spencer has been cast in the key role of Lindsey Steers, a hotshot up-and-coming lawyer at Rex's firm -- and his fiancee. Madcap complications will most assuredly ensue.

That was some Mad Men finale, wasn't it? If you haven't seen it yet, please stop reading now, because there was just too much going on for me not to just launch into some discussion.

OK, I'll wait until after the jump to really get into things. But, suffice to say, the end of season three left some characters going down a pretty well-determined path, but others have entered a sort of limbo state, where we don't quite know what their roles will be in season four.