As we reported earlier, CBS has decided to “un-cancel” their 2011-12 drama Unforgettable and has ordered a second season. The 13 new episodes will begin airing next summer.

We’re now learning that, while the show will be back, not all of the castmembers will be reporting back to work. Poppy Montgomery, Dylan Walsh, and Jane Curtin are set to return but essentially the entire supporting cast is out — including Kevin Rankin, Michael Gaston, and Britt Lower.

The three stars were not surprisingly instrumental in Unforgettable being revived and the show wouldn’t have gotten a second season without them. The supporting cast being replaced is part of what the producers are calling a “new creative direction” for the crime drama.

There’s no word yet on who will replace the performers who have been dropped. That casting will likely be a good indication about what “new direction” viewers can expect to see next summer.

What do you think? Will you miss these performers and their characters? Do you think the changes will help or hurt Unforgettable’s chances for a third season?