Brainstorming
In the past letter writing campaigns and petitions have yielded results with the networks when either a show is cancelled or a favorite actor/character let go. That is why now is the time to get organized. So far we have several popular ideas:
Come up with a good motto, everyone involved with the campaign effort actively advertises the goal.
So far we have 'Save the Good Dr' or perhaps something even simpler could work: 'SWC Campaign'
The most important thing being a focus on SWC or Dr. Tancredi. Everyone needs to know what we are talking
about the minute they see our motto/headline.
Launch a website dedicated to our cause with discussion forums and moderators.
Have members sign a petition. Once the website is up and running, make sure a lot of people see it.
Letter writing campaign
(the making of masses of paper cranes has been suggested and an internet how-to sight located)
Email Network Executives like nobody's business.
I once had the Blackberry contact information for one of the higher ups on the ABC/Alias production team. I'm pretty sure we drove her nuts, but eventually they brought our supposedly shot full of bullets dead character back.
Branch out. Contact various media sources - entertainment weekly, tv guide, people, anyone and everyone. Get them to listen.
Threaten the network or show (or both) with a broad boycott if we find out SWC was wrongfully terminated.
This is a bit of a sticking issue since frequently answers are not forthcoming in this particular situation.
Feel free to add additional ideas or things that you personally would like to help with in the comments. Tell your friends. The main idea is to get alot of people on board quickly.