As the new fall season approaches, last minute changes are being made and new characters added to the various primetime rosters. Here are a few of the latest and greatest casting changes and additions....

• The role of Angie Spivey, Christian Slater's wife on My Own Worst Enemy, has been recast. Yara Martinez has been replaced with Madchen Amick, who is joining the cast of the thrilling NBC series fresh off the set of the CW's Gossip Girl.
  
  
• As reported last week, Laurence Fishburne was in talks to replace William Petersen on CSI: Crime Scene Investigation and I'm happy to report that the multi-talented actor has officially signed on the dotted line. His character will be introduced in episode nine.
  
  The actor addressed the fans via a press release issued by CBS: "I am elated and delighted to be joining the cast of CSI," says Fishburne. "I look forward to a wonderful collaboration with the creative and talented team of such a successful and distinguished show," he added.
  
  
• As ER enters its 15th and final season, viewers should expect surprise appearances from some of the series most loved characters. We already know that Oscar and Emmy-nominated actress Angela Bassett has joined the cast as the new attending physician at County General, but NBC has also snagged her real-life husband, Courtney B. Vance, to play a recurring role -- as her on-screen husband.

^{Photo Credit: Giovanni Rufino/The CW ©2008 The CW Network, All Rights Reserved.}

In recent years, dramedies seem to be popping up all the time on four of the five big networks, but CBS has dodged that bullet -- until now. At long last, the eye network has found a fun and sassy dramedy in The Ex List.

What is The Ex List?
Premiere: October 3
The series follows the life of Bella Bloom (played by Elizabeth Reaser), a 30-something businesswoman looking for Mr. Right. While attending a bachelorette party for her sister, Daphne, a psychic reveals to Bella that she has already dated her future husband and has to find him in the next year or risk remaining alone forever. Once she witnesses proof of the psychic's predictions, Bella realizes must revisit every relationship and evaluate each mistake in order to finally find that one right guy. Will she find him before it's too late?

• More About The Ex List
• The Ex List Photo Gallery
• Guide to the New Fall Dramas

^{Photo: Cliff Lipson/CBS ©2008 CBS Broadcasting Inc. All Rights Reserved.}

In his third CBS drama series, Simon Baker takes on yet another intriguing and entertaining character when he becomes The Mentalist on Tuesday nights this fall. Will the third time be the charm for this talented actor?

What is The Mentalist?
Premiere: September 23
An alternative version of Jack Bauer arrives in the form of Patrick Jane, a detective and independent consultant with the California Bureau of Investigation (CBI). Although Jane has the uncanny ability to get the toughest cases solved, he rarely plays by the rules, and constantly breaks protocol. He'll have his work cut out for him when assigned to Senior Agent Teresa Lisbon's unit though....

• More About The Mentalist
• The Mentalist Photo Gallery
• Guide to the New Fall Dramas

^{Photo: Randy Tepper/CBS ©2008 CBS Broadcasting Inc. All Rights Reserved.}

After a long and distinguished film career, Christian Slater tries his hand at the small screen this fall with a drama that is sure to keep us glued to the tube with My Own Worst Enemy on Monday nights this season. From Heathers to Pump Up the Volume, Slater has a history of choosing memorable (and often chilling) characters -- will Henry and/or Edward captivate viewers this fall?

What is My Own Worst Enemy?
Henry Spivey is your typical middle-class family man with 2.3 kids. Edward Albright is a highly trained operative who can speak 13 languages and has the skill to kill with only his teeth. Henry and Edward share the same body and when their wall begins to crumple, the two are forced into dangerous situations only the other man can handle. However, the biggest challenge of all is, who can you trust when you can't trust yourself?

• More About My Own Worst Enemy
• My Own Worst Enemy Photo Gallery

^{NBC Photo: Mitchell Haaseth Copyright © 2008 NBC Universal, Inc. All rights reserved.}