A bit of history about this show:

The Sarah Connor Chronicles was originally announced in the fall of 2005 that it was going to be developed. It was told that it revolved around Sarah Connor and her son, a teenager, John. According to James Middleton, the Sarah Connor Chronicles will follow what happens to Sarah Connor prior to Terminator 3. She bears the burden of raising a son who is destined to be the savior of humanity.

As of now their is virtually non of the original cast orr writers from the original movies involved in the Sarah Connor Chronicles TV show. However, among those form the Terminator Trilogy that are involved are Joel Kramer, Mario Kassar and Andy Vajna, a well as David Nutter.