I believe the full cast of characters that made it to the 2010 event were the following:

Stumpy and nephew
IntrepidCamper with Son and Friend
Kingfisher and Paddlemaker
Hexnymph and crew (pghportager, reelhappy and pennpaddler)
Quiet Wild (solo)

I believe it was only Hexnymph and his band of crazed bushcrashers that made it all the way to 2005's final destination.

As someone who prefers to go it alone, I still had fun (it was just one day and night out of a ten day trip). Bushwhacking from That Man Lake into Magie was a highlight of the trip for me. Planning it is also half the fun, but I may be goofy that way.