1. Battlestar Galactica's Tricia Helfer has been cast in a pilot for FOX called Inseparable. The show will focus on a forensic psychiatrist that has a split personality (and one of those personalities might be just a little bit psycho murderer...so...sounds like CSI meets Dexter). Helfer will play a shrink that works for the police department.

Source: TV Guide.

2. Rosie Perez and Carlos Ponce both have gotten themselves guest starring arcs on Lipstick Jungle. Perez will play a publicist and Ponce will play a new suitor for Victory.

Source: TV Guide.

3. Luke Perry has been cast as a "baddie" on Criminal Minds for an early episode of next season.

Source: TV Guide

4. Aidan Quinn and Rutger Hauer have both joined a new ABC drama pilot, Prince of Motor City. This pilot already has a large ensemble cast including Piper Perabo, Andie MacDowell, Sharon Lawrence, John Carroll Lynch, Warren Christie and Morris Chestnut.

Source: The Hollywood Reporter