Who is Jabbo, Bungalow, Oceanfrog, Ulyss, Sharpe, Cabbage, Rufus Ho from Suttree and what is their importance?

These are some of the local characters who hang around in McAnally Flats, drinking and enjoying each other's company. They all get in different kinds of trouble at different times and Suttree cares for all of them since they provide him with companionship and are funny and interesting.