I remember reading about the proposed second season of
Battlestar: Galactica". Let's just say that it's probably better that it didn't happen. Tragedy would've struck early on, wiping out a lot of the production costs-- er, I mean the secondary cast. Characters were doomed (along some would be disfigured and receive cosmetic surgery to make them look like cheaper actors).
That said, I was just talking about Baltar the other day at work, in the context of Jon Colicos and Mikkos Cassidine and the weather machine on "General Hospital" ... well, it was the 80s ...