ER has a new group of interns ready for their final season. Chief among them for me is Shiri Appleby. I still have fond enough memories of Roswell that I'm interested to see her cast for that reason alone. She'll be joined by Julian Morris. The two will play siblings Daria and Andrew Wade, a pair that have decidedly different work ethics. Also eager to learn at County General will be Emily Rose (Brothers & Sisters, Jericho) as the ambitious, controlling, Tracy Martin. Rounding out the quartet of interns is Viktor Rasuk (Stop-Loss) as the nervous Ryan Sanchez.

In other casting news, Paul Campbell (Battlestar Galactica) is set to be the new head research tech at Knight Industries on Knight Rider. A casting move that should give the show some much needed help. On The Sarah Connor Chronicles Leven Rambin (All My Children) will take on the role of Becky, a potential love interest for John. And over at Numb3rs, Sophina Brown (Shark) will try to fill the spot left when Diane Farr's Megan Reeves left the team at the end of last season. Her role as a junior agent is said to be recurring, with the possibility of becoming a regular.